NASA conducts a hot fire of RS-25 engine No. 2063 on the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, on Jan. 22, 2026. NASA/Chris Russell NASA conducts a hot fire of RS-25 engine No. 2063 on the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, on Jan. 22, 2026. NASA/Chris Russell NASA conducts a hot fire of RS-25 engine No. 2063 on the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, on Jan. 22, 2026. NASA/Chris Russell NASA conducts a hot fire of RS-25 engine No. 2063 on the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, on Jan. 22, 2026. NASA/Chris Russell NASA successfully conducted a hot fire of RS-25 engine No. 2063 on Jan. 22 at the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, clearing the way for the engine to be installed for the agency’s Artemis IV mission. The RS-25 engines help power NASA’s SLS (Space Launch System) rocket that will carry astronauts to the Moon under the Artemis campaign. Engine No. 2063 originally was installed on the SLS core stage for the Artemis II mission but was removed in 2025 after engineers discovered a hydraulic leak on the engine’s main oxidizer valve actuator, which controls propellant flow into the engine combustion chamber. Following standard NASA procedures, teams removed the engine from the core stage and replaced the actuator. Because NASA requires any significantly modified or repaired engine to undergo hot fire testing before flight, teams at NASA Stennis fired the engine for five minutes (300 seconds), at up to 109% of its rated power level in a test known as a confidence test that demonstrates the engine is ready for flight. The test was conducted by a team of operators from NASA, L3Harris Technologies, and Sierra Lobo, Inc., the NASA Stennis test operations contractor. NASA Stennis provides critical data to L3Harris, the prime engines contractor for the SLS rocket. With the successful test complete, engine No. 2063 is scheduled to be installed on the SLS core stage for Artemis IV. All RS-25 engines for NASA’s Artemis missions are tested and proven flightworthy at NASA Stennis before flight. NASA is targeting as soon as February to send four astronauts around the Moon and back on Artemis II, the first crewed mission under the Artemis campaign. During launch, the SLS rocket will use four RS-25 engines, along with a pair of solid rocket boosters, to help lift the Orion spacecraft and the crew away from Earth using more than 8.8 million pounds of thrust. Under the Artemis campaign, NASA is returning humans to the Moon for economic benefits, scientific discovery, and to prepare for crewed missions to Mars. Read Updates at the Artemis Blog

NASA Conducts Hot Fire of RS-25 Engine NASA successfully conducted a hot fire of RS-25 engine No. 2063 on Jan. 22 at the Fred Haise Test Stand at NASA’s Stennis Space Center near Bay St. Louis, M...

#RS-25 #Stennis #Space #Center

Origin | Interest | Match

In 2025, NASA’s Stennis Space Center near Bay St. Louis, Mississippi, marked a year of progress by supporting NASA’s Artemis campaign, celebrating historic milestones, and continuing its role as a trusted propulsion test partner at America’s largest rocket propulsion test site. “For more than six decades, NASA Stennis has proudly represented the Gulf Coast region and America in advancing our nation’s space exploration goals,” said NASA Stennis Director John Bailey. “This year, we continued our progress forward as we near the launch of Artemis II, while honoring milestones that have brought our center to this point.” ## Supporting Artemis As NASA prepares for the launch of Artemis II in early 2026, with the first crewed mission to the Moon in over 50 years, NASA Stennis continues its frontline work. Every RS-25 engine used to help launch NASA’s SLS (Space Launch System) rocket to the Moon is tested in south Mississippi. NASA Stennis teams provided data to lead engines contractor L3Harris Technologies by successfully testing two new production RS-25 flight engines. NASA tested RS-25 engine No. 20001 at the Fred Haise Test Stand in June, and RS-25 engine No. 20002 in November. Each engine fired for 500 seconds, reaching 111% of its rated power, while simulating launch conditions. Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18, 2025. NASA/Danny Nowlin NASA tests RS-25 engine No. 20001 on June 20, 2025, at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, Mississippi. NASA/Danny Nowlin ## Supporting Commercial Propulsion The commercial aerospace industry is growing, and NASA Stennis is a secure location providing support for it. Companies that have conducted work at NASA Stennis include Blue Origin, Boeing, Evolution Space; Launcher, a Vast company; Relativity Space and Rolls-Royce. Three companies – Relativity Space, Rocket Lab, and Evolution Space – have established, or continue progress to establish, production and/or test operations at NASA Stennis. Infrastructure upgrades and planning efforts across the test complex are laying the foundation for future propulsion test projects as well. “As the commercial space industry continues to accelerate their development, NASA Stennis is adapting to meet their propulsion testing needs,” said Joe Schuyler, director of the NASA Stennis Engineering and Test Directorate. “We are proud that our proven experience makes us a trusted partner.” ## Honoring the Past In 2025, NASA Stennis honored a defining era of space shuttle main engine testing. An image shows the first space shuttle main engine installed on May 8, 1975, at the Fred Haise Test Stand (formerly A-1). NASA While NASA Stennis operates as the nation’s largest rocket propulsion test site, the NASA Stennis Federal City also is home to more than 50 federal, state, academic, and commercial tenants. This year marked the birth of the federal city concept 55 years ago. The unique operating approach serves as a model of government efficiency and a powerful economic engine for the Gulf Coast region. Meanwhile, the 50th anniversary of space shuttle main engine testing honored a defining era for NASA Stennis. From May 1975 to July 2009, NASA Stennis tested space shuttle main engines that enabled 135 shuttle missions and notable space milestones, like deployment of the Hubble Space Telescope and construction of the International Space Station. Both the federal city model and the decades of propulsion excellence continue to inform work at NASA Stennis. ## Engineering the Future Innovation extended beyond the test stands. The versatile testing environment at NASA Stennis is uniquely positioned to support unmanned systems testing across air, land, and water. With restricted airspace, a closed canal system, and vast protected terrain, the site offers a safe, flexible environment for range operations. In addition to physical infrastructure, NASA Stennis progressed in digital innovation with the release of its first open-source software tool to streamline propulsion test data collection and collaboration across NASA and industry. The peer review tool is designed to facilitate more efficient and collaborative creation of systems applications, such as those used in frontline government and propulsion test work. U.S. Naval Research Laboratory personnel conduct a field experiment involving an unmanned aerial system at NASA Stennis in March 2024. NASA/Danny Nowlin U.S. Naval Research laboratory personnel conduct tests on The Blue Boat made by Blue Robotics, an unmanned surface vessel, at NOAA’s National Data Buoy Center basin at NASA Stennis on Dec. 19, 2024. NASA/Danny Nowlin NASA software engineer Brandon Carver updates how the main data acquisition software processes information on March 5, 2025, at NASA’s Stennis Space Center, where he has contributed to the creation of the center’s first-ever open-source software. NASA/Danny Nowlin Syncom Space Services software engineer Shane Cravens, the chief architect behind the first-ever open-source software at NASA’s Stennis Space Center, verifies operation of the site’s data acquisition hardware. NASA/Danny Nowlin ## Community and Inspiration NASA Stennis connected with communities in creative ways in 2025. During Super Bowl week, NASA Stennis representatives inspired future explorers by bringing Artemis mission displays and hands-on activities to families at the Audubon Aquarium in New Orleans. In March, NASA Stennis supported the third annual FIRST Robotics Magnolia Regional as a lead sponsor with employees and interns volunteering at the event. The competition in Laurel, Mississippi, brought together 37 teams from eight U.S. states (Alabama, California, Florida, Louisiana, Minnesota, Mississippi, Missouri, and Tennessee) and Mexico. The FIRST (For the Inspiration and Recognition of Science and Technology) Robotics event joined NASA’s Robotics Alliance Project to combine the excitement of sport with the rigors of science, technology, engineering, and mathematics (STEM) in field games using industrial-sized robots. That same spirit of hands-on learning continues at INFINITY Science Center, the official visitor center of NASA Stennis. A new interactive exhibit has provided visitors a chance to become a test conductor and simulate RS-25 engine tests for the engines that will help power NASA’s Artemis missions. A pair of young visitors to INFINITY Science Center carry out the steps of a simulated RS-25 engine hot fire on Dec. 19, 2024. The engine test simulator exhibit provided by NASA’s Stennis Space Center takes users through the hot fire process just as real engineers do at NASA Stennis. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans on Feb. 7-8, 2025, with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans on Feb. 7-8, 2025, with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA serves as a lead sponsor, along with NASA Stennis employees and interns volunteering, for the third annual FIRST Robotics Magnolia Regional Competition on March 14, 2025. The event in Laurel, Mississippi, welcomed 37 teams from eight states (Alabama, California, Florida, Louisiana, Minnesota, Missouri, Mississippi, and Tennessee) and one team from Mexico. The FIRST (For the Inspiration and Recognition of Science and Technology) Robotics event joined NASA’s Robotics Alliance Project to combine the excitement of sport with the rigors of science, technology, engineering, and mathematics (STEM) in field games using industrial-sized robots. NASA/Danny Nowlin NASA serves as a lead sponsor, along with NASA Stennis employees and interns volunteering, for the third annual FIRST Robotics Magnolia Regional Competition on March 14, 2025. The event in Laurel, Mississippi, welcomed 37 teams from eight states (Alabama, California, Florida, Louisiana, Minnesota, Missouri, Mississippi, and Tennessee) and one team from Mexico. The FIRST (For the Inspiration and Recognition of Science and Technology) Robotics event joined NASA’s Robotics Alliance Project to combine the excitement of sport with the rigors of science, technology, engineering, and mathematics (STEM) in field games using industrial-sized robots. NASA/Danny Nowlin ## A Winter Wonderland Hancock County, where NASA Stennis is located, received five to seven inches of snow on Jan. 21, 2025, according to the National Weather Service. It marked the most snow Hancock County, Mississippi, has received in 61 years. The Dec. 31, 1963, snowfall holds the record at 10 inches of snow for Bay St. Louis, Mississippi. A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis A series of cell phone and stationary camera images record snowfall at NASA’s Stennis Space Center on Jan. 21, 2025. NASA/Stennis ## Looking Ahead All in all, the year closes with members of the NASA Stennis team focused on what is to come. “As we close out 2025, NASA Stennis looks forward to the next chapter of our center as NASA sends astronauts to the Moon to prepare for future human exploration of Mars through the agency’s Artemis campaign,” said NASA Stennis Deputy Director Christine Powell. “We are ready for what’s next.”

A Look Back at NASA Stennis in 2025 In 2025, NASA’s Stennis Space Center near Bay St. Louis, Mississippi, marked a year of progress by supporting NASA’s Artemis campaign, celebrating historic m...

#Stennis #Space #Center

Origin | Interest | Match

Huy Nguyen is an electrical controls engineer at NASA’s Stennis Space Center, where his work has contributed to NASA’s Artemis program that will send astronauts to the Moon to prepare for future human exploration of Mars. NASA/Danny Nowlin Huy Nguyen grew up hearing about rocket engines and space flight around the family table. His parents worked for NASA’s Michoud Assembly Facility in New Orleans, and those early conversations eventually started his path to NASA’s Stennis Space Center near Bay St. Louis, Mississippi. “They both created a household that allowed me to be curious and to be a problem solver,” Nguyen said. The dinner conversations have come full circle as the New Orleans native finds himself applying that same curiosity and problem-solving mindset at NASA Stennis. Nguyen is currently the electrical controls engineer for propulsion testing support areas, which include the NASA Stennis High Pressure Gas Facility and the High Pressure Industrial Water Facility. “Both areas are considered the heart and powerhouse of testing,” Nguyen said. His work involves two key challenges: maintaining legacy systems with hard-to-find replacement parts and modernizing them with robust control systems that offer better monitoring and maintenance capabilities. What energizes Nguyen most is bridging old and new technology by creating improved user interfaces and integrating modern controls with existing infrastructure. “This is what excites me about my work,” he said. One of the most exciting moments in Nguyen’s NASA career came with the successful Green Run test series at NASA Stennis for NASA’s Artemis campaign to return humans to the Moon. The test series helped validate the first SLS (Space Launch System) core stage for the Artemis I test flight around the Moon, setting the stage for the Artemis II test flight when four astronauts will fly around the Moon in early 2026. As the engineer overseeing controls operations for the NASA Stennis High Pressure Gas Facility and High Pressure Industrial Water Facility, Nguyen had a critical responsibility leading to the Green Run test series. He ensured the complex systems ran flawlessly to supply helium, nitrogen, air, and water for SLS core stage testing. It turned into a career highlight. “It was a lot of work to set it up and then run it around the clock for 24 hours,” Nguyen recalled. For an entire day, multiple systems had to operate in perfect harmony, supplying everything the massive SLS core stage needed for a sitewide stress test. “Seeing everyone focused on a single goal like that was truly amazing,” he said. Engineers, technicians, and support staff worked in shifts around the clock. Each person knew their role was essential to the mission’s success. It was the kind of teamwork his NASA parents likely witnessed countless times, and now Nguyen experienced it himself. The 24-hour exercise helped make way for a historic milestone at NASA Stennis. The Green Run testing series reached its conclusion on March 18, 2021, when the SLS core stage fired its four RS-25 engines for a full mission duration of 8 minutes and 19 seconds. The final Green Run hot fire represented the most powerful propulsion test at the center in more than 40 years. As NASA prepares for Artemis II, Nguyen’s work upgrading these critical facilities ensures NASA Stennis will remain ready to support humanity’s next giant leaps into deep space. When Artemis II launches in 2026, Nguyen looks forward to watching the test flight around the Moon with his parents, who inspired him as a young boy, and his young nephews. “My nephews are currently obsessed with cars and trucks, so I hope Artemis II will expose them to space travel,” Nguyen said. Through the Artemis campaign, NASA will send astronauts to the Moon to prepare for future human exploration of Mars and inspire the next generation of explorers. Learn More About Careers at NASA Stennis

NASA Stennis Engineer Follows Family Footsteps into NASA’s Artemis Era Huy Nguyen grew up hearing about rocket engines and space flight around the family table. His parents worked for NASA’s Mi...

#Stennis #Space #Center

Origin | Interest | Match

Huy Nguyen is an electrical controls engineer at NASA’s Stennis Space Center, where his work has contributed to NASA’s Artemis program that will send astronauts to the Moon to prepare for future human exploration of Mars. NASA/Danny Nowlin Huy Nguyen grew up hearing about rocket engines and space flight around the family table. His parents worked for NASA’s Michoud Assembly Facility in New Orleans, and those early conversations eventually started his path to NASA’s Stennis Space Center near Bay St. Louis, Mississippi. “They both created a household that allowed me to be curious and to be a problem solver,” Nguyen said. The dinner conversations have come full circle as the New Orleans native finds himself applying that same curiosity and problem-solving mindset at NASA Stennis. Nguyen is currently the electrical controls engineer for propulsion testing support areas, which include the NASA Stennis High Pressure Gas Facility and the High Pressure Industrial Water Facility. “Both areas are considered the heart and powerhouse of testing,” Nguyen said. His work involves two key challenges: maintaining legacy systems with hard-to-find replacement parts and modernizing them with robust control systems that offer better monitoring and maintenance capabilities. What energizes Nguyen most is bridging old and new technology by creating improved user interfaces and integrating modern controls with existing infrastructure. “This is what excites me about my work,” he said. One of the most exciting moments in Nguyen’s NASA career came with the successful Green Run test series at NASA Stennis for NASA’s Artemis campaign to return humans to the Moon. The test series helped validate the first SLS (Space Launch System) core stage for the Artemis I test flight around the Moon, setting the stage for the Artemis II test flight when four astronauts will fly around the Moon in early 2026. As the engineer overseeing controls operations for the NASA Stennis High Pressure Gas Facility and High Pressure Industrial Water Facility, Nguyen had a critical responsibility leading to the Green Run test series. He ensured the complex systems ran flawlessly to supply helium, nitrogen, air, and water for SLS core stage testing. It turned into a career highlight. “It was a lot of work to set it up and then run it around the clock for 24 hours,” Nguyen recalled. For an entire day, multiple systems had to operate in perfect harmony, supplying everything the massive SLS core stage needed for a sitewide stress test. “Seeing everyone focused on a single goal like that was truly amazing,” he said. Engineers, technicians, and support staff worked in shifts around the clock. Each person knew their role was essential to the mission’s success. It was the kind of teamwork his NASA parents likely witnessed countless times, and now Nguyen experienced it himself. The 24-hour exercise helped make way for a historic milestone at NASA Stennis. The Green Run testing series reached its conclusion on March 18, 2021, when the SLS core stage fired its four RS-25 engines for a full mission duration of 8 minutes and 19 seconds. The final Green Run hot fire represented the most powerful propulsion test at the center in more than 40 years. As NASA prepares for Artemis II, Nguyen’s work upgrading these critical facilities ensures NASA Stennis will remain ready to support humanity’s next giant leaps into deep space. When Artemis II launches in 2026, Nguyen looks forward to watching the test flight around the Moon with his parents, who inspired him as a young boy, and his young nephews. “My nephews are currently obsessed with cars and trucks, so I hope Artemis II will expose them to space travel,” Nguyen said. Through the Artemis campaign, NASA will send astronauts to the Moon to prepare for future human exploration of Mars and inspire the next generation of explorers. Learn More About Careers at NASA Stennis

NASA Stennis Engineer Follows Family Footsteps into NASA’s Artemis Era Huy Nguyen grew up hearing about rocket engines and space flight around the family table. His parents worked for NASA’s Mi...

#Stennis #Space #Center

Origin | Interest | Match

NASA Stennis Buffer Zone NASA / Stennis NASA’s Stennis Space Center is widely known for rocket propulsion testing, especially to support the NASA Artemis program to send astronauts to the Moon to prepare for future human exploration of Mars. What may not be so widely known is that the site also is a unique federal city, home to more than 50 federal, state, academic, and commercial tenants and serving as both a model of government efficiency and a powerful economic engine for its region. “NASA Stennis is a remarkable story of vision and innovation,” Center Director John Bailey said. “That was the case 55 years ago when the NASA Stennis federal city was born, and it remains the case today as we collaborate and grow to meet the needs of a changing aerospace world.” ### Apollo Years Nearly four years after its first Saturn V stage test, NASA’s Stennis Space Center faced a crossroads to the future. Indeed, despite its frontline role in supporting NASA’s Apollo lunar effort, it was not at all certain a viable future awaited the young rocket propulsion test site. In 1961, NASA announced plans to build a sprawling propulsion test site in south Mississippi to support Apollo missions to the Moon. The news was a significant development for the sparsely populated Gulf Coast area. The new site, located near Bay St. Louis, Mississippi, conducted its first hot fire of a Saturn V rocket stage in April 1966. Saturn V testing progressed steadily during the next years. In fall 1969, however, NASA announced an end to Apollo-related testing, leading to an existential crisis for the young test site. What was to become of NASA Stennis? ### An Expanded Vision Some observers speculated the location would close or be reduced to caretaker status, with minimal staffing. Either scenario would deliver a serious blow to the families who had re-located to make way for the site and the local communities who had heavily invested in municipal projects to support the influx of workforce personnel. Such outcomes also would run counter to assurances provided by leaders that the new test site would benefit its surrounding region and involve area residents in “something great.” For NASA Stennis manager Jackson Balch and others, such a result was unacceptable. Anticipating the crisis, Balch had been working behind the scenes to communicate – and realize – the vision of a multiagency site supporting a range of scientific and technological tenants and missions. ### A Pivotal Year The months following the Saturn V testing announcement were filled with discussions and planning to ensure the future of NASA Stennis. The efforts began to come to fruition in 1970 with key developments: * In early 1970, NASA Administrator Thomas Paine proposed locating a regional environmental center at NASA Stennis. U.S. Sen. John C. Stennis (Mississippi) responded with a message of the president, “urgently requesting” that a _National_ Earth Resources and Environmental Data Program be established at the site. * In May 1970, President Richard Nixon offered assurances that an Earth Resources Laboratory would be established at NASA Stennis and that at least two agencies are preparing to locate operations at the site. * U.S. congressional leaders earmarked $10 million to enable the location of an Earth Resources Laboratory at NASA Stennis. * On July 9, 1970, the U.S. Coast Guard’s National Data Buoy Project (now the National Data Buoy Center) announced it was relocating to NASA Stennis, making it the first federal city tenant. The project arrived onsite two months later on September 9. * On Sept. 9, 1970, NASA officially announced establishment of an Earth Resources Laboratory at NASA Stennis. ### Time to Grow By the end of 1970, Balch’s vision was taking shape, but it needed time to grow. The final Saturn V test had been conducted in October – with no new campaign scheduled. A possibility was on the horizon, however. NASA was building a reusable space shuttle vehicle. It would be powered by the most sophisticated rocket engine ever designed – and the agency needed a place to conduct developmental and flight testing expected to last for decades. Three sites vied for the assignment. Following presentations and evaluations, NASA announced its selection on March 1, 1971. Space shuttle engine testing would be conducted at NASA Stennis, providing time for the location to grow. ### A Collaborative Model By the spring of 1973, preparations for the space shuttle test campaign were progressing and NASA Stennis was on its way to realizing the federal city vision. Sixteen agencies and universities were now located at NASA Stennis. The resident tenants followed a shared model in which they shared in the cost of basic site services, such as medical, security, and fire protection. The shared model freed up more funding for the tenants to apply towards innovation and assigned mission work. It was a model of government collaboration and efficiency. As the site grew, leaders then began to call for it to be granted independent status within NASA, a development not long in coming. On June 14, 1974, just more than a decade after site construction began, NASA Administrator James Fletcher announced the south Mississippi location would be renamed National Space Technology Laboratories and would enjoy equal, independent status alongside other NASA centers. ### “Something Great” For NASA Stennis leaders and supporters, independent status represented a milestone moment in their effort to ensure NASA Stennis delivered on its promise of greatness. There still were many developments to come, including the first space shuttle main engine test and the subsequent 34-year test campaign, the arrival and growth of the U.S. Navy into the predominant resident presence onsite, the renaming of the center to NASA Stennis, and the continued growth of the federal city. No one could have imagined it all at the time. However, even in this period of early development, one thing was clear – the future lay ahead, and NASA Stennis was on its way. Read More About Stennis Space Center

Crossroads to the Future – NASA Stennis Grows into a Model Federal City NASA’s Stennis Space Center is widely known for rocket propulsion testing, especially to support the NASA Artemis program...

#Stennis #Space #Center

Origin | Interest | Match

Patricia White is a contracting officer at NASA’s Stennis Space Center, where she contributes to NASA’s Artemis program that will send astronauts to the Moon to prepare for future human exploration of Mars. NASA/Danny Nowlin When NASA’s Artemis II mission launches in 2026, it will inspire the world through discovery in a new Golden Age of innovation and exploration. It will be another inspiring NASA moment Patricia White can add to her growing list. White supports the Artemis program to send astronauts to the Moon to prepare for future human exploration of Mars as a contracting officer at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. White takes special pride in the test operations contract she helped draft. The contract provides support to the Fred Haise Test Stand, which tests the RS-25 engines that will help power NASA’s SLS (Space Launch System) rocket on Artemis missions. “I was awestruck the first time I witnessed an engine test,” White said. “I remember how small I felt in comparison to this big and fascinating world, and I wondered what that engine would see that I would never be able to see.” Four RS-25 engines tested at NASA Stennis will help launch Artemis II with four astronauts to venture around the Moon. As the first crewed Artemis mission, it will represent another milestone for the nation’s human space exploration effort. ### From Interstate Signs to NASA Career White describes NASA Stennis as a hidden gem. Growing up in nearby Slidell, Louisiana, she had driven by the interstate signs pointing toward NASA Stennis her entire life. When she heard about a job opportunity at the center, she immediately applied. Initially hired as a contractor with only a high school diploma in February 2008, White found her motivation among NASA’s ranks. “I work with very inspiring people, and it only took one person to say, ‘You should go to college’ to give me the courage to go so late in life,” she said. ### Hard But Worth It White began college classes in her 40s and finished at 50. She balanced a marriage, full-time job, academic studies, and household responsibilities. When she started her educational journey, her children were either toddlers or newborns. They were growing up as she stayed in school for nine years while meeting life’s challenges. “It was hard, but it was so worth it,” she said. “I love my job and what I do, and even though it is crazy busy, I look forward to working at NASA every single day.” She joined NASA officially in 2013, going from contractor to civil servant. ### Setting an Example White’s proudest work moment came when she brought home the NASA Early Career Achievement award and medal. It served as a tangible symbol of her success she could share with her family. “It was a long road from being hired as an intern, and we all made extraordinary sacrifices,” she said. “I wanted to share it with them and set a good example for my children.” As Artemis II prepares to carry humans back to lunar orbit for the first time in over 50 years, White takes pride knowing her work helps power humanity’s return to deep space exploration. Her work is proof that sometimes the most important journeys begin right in one’s own backyard. Learn More About Careers at NASA Stennis

NASA Contract Officer Helps Power Journey Back to the Moon When NASA’s Artemis II mission launches in 2026, it will inspire the world through discovery in a new Golden Age of innovation and explo...

#Stennis #Space #Center

Origin | Interest | Match

VesselAlert
Name: STENNIS
MMSI: 244860683
Callsign: PB5276
Type: Sailing
Flag: Netherlands
Seen: 12-Aug-2025 09:48:43 CEST
Speed: 4.7 kts
Distance: 25.6 nm
Signal RSSI: -14.3 dBFS
Ship AIS VesselAlert © kx1t - link

VesselAlert
Name: STENNIS
MMSI: 244860683
Callsign: PB5276
Type: Sailing
Flag: Netherlands
Seen: 12-Aug-2025 02:20:40 CEST
Speed: 5.9 kts
Distance: 20.6 nm
Signal RSSI: -7.9 dBFS
Ship AIS VesselAlert © kx1t - link

VesselAlert
Name: STENNIS
MMSI: 244860683
Callsign: PB5276
Type: Sailing
Flag: Netherlands
Seen: 11-Aug-2025 23:32:29 CEST
Speed: 3.8 kts
Distance: 23.9 nm
Signal RSSI: -24.8 dBFS
Ship AIS VesselAlert © kx1t - link

VesselAlert
Name: STENNIS
MMSI: 244001554
Callsign: PC5432
Type: Pleasure Craft
Flag: Netherlands
Seen: 30-Jul-2025 14:13:08 CEST
Speed: 3.1 kts
Distance: 2.5 nm
Signal RSSI: -20.1 dBFS
Ship AIS VesselAlert © kx1t - link

VesselAlert
Name: STENNIS
MMSI: 244001554
Callsign: PC5432
Type: Pleasure Craft
Flag: Netherlands
Seen: 29-Jul-2025 18:26:26 CEST
Speed: 5.2 kts
Distance: 6.2 nm
Signal RSSI: -13.9 dBFS
Ship AIS VesselAlert © kx1t - link

Dwayne Lavigne works as a controls engineer at NASA’s Stennis Space Center, where he supports NASA’s Artemis mission by programming specialized computers for engine testing. NASA/Danny Nowlin As a controls engineer at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, Dwayne Lavigne does not just fix problems – he helps put pieces together at America’s largest rocket propulsion test site. “There are a lot of interesting problems to solve, and they are never the same,” Lavigne said. “Sometimes, it is like solving a very cool puzzle and can be pretty satisfying.” Lavigne programs specialized computers called programmable logic controllers. They are extremely fast and reliable for automating precisely timed operations during rocket engine tests as NASA Stennis supports the agency’s Artemis missions to explore the Moon and build the foundation for the first crewed mission to Mars. However, the system will not act unless certain parameters are met in the proper sequence. It can be a complex relationship. Sometimes, 20 or 30 things must be in the correct configuration to perform an operation, such as making a valve open or close, or turning a motor on or off. The Picayune, Mississippi, native is responsible for establishing new signal paths between test hardware and the specialized computers. He also develops the human machine interface for the controls. The interface is a screen graphic that test engineers use to interact with hardware. Lavigne has worked with NASA for more than a decade. One of his proudest work moments came when he contributed to development of an automated test sequencing routine used during all RS-25 engine tests on the Fred Haise Test Stand. “We’ve had many successful tests over the years, and each one is a point of pride,” he said. When Lavigne works on the test stand, he works with the test hardware and interacts with technicians and engineers who perform different tasks than he does. It provides an appreciation for the group effort it takes to support NASA’s mission. “The group of people I work with are driven to get the job done and get it done right,” he said. In total, Lavigne has been part of the NASA Stennis federal city for 26 years. He initially worked as a contractor with the Naval Oceanographic Office as a data entry operator and with the Naval Research Laboratory as a software developer. September marks 55 years since NASA Stennis became a federal city. NASA, and more than 50 companies, organizations, and agencies located onsite share in operating costs, which allows tenants to direct more of their funding to individual missions. “Stennis has a talented workforce accomplishing many different tasks,” said Lavigne. “The three agencies I’ve worked with at NASA Stennis are all very focused on doing the job correctly and professionally. In all three agencies, people realize that lives could be at risk if mistakes are made or shortcuts are taken.” Learn More About Careers at NASA Stennis

NASA Stennis Engineer Takes Pride in Test Support Work As a controls engineer at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, Dwayne Lavigne does not just fix problems – he help...

#Stennis #Space #Center

Origin | Interest | Match

Original post on nasa.gov

NASA Tests New RS-25 Engine NASA tested RS-25 engine No. 20001 on June 20, at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, Mississippi. Test teams fired the engine f...

#Marshall #Space #Flight #Center #Space #Launch #System #(SLS) […]

[Original post on nasa.gov]

Christina Zeringue is the chief safety and mission assurance officer at NASA’s Stennis Space Center. She is responsible for the safety and mission success of all activities, including rocket propulsion testing and operation of the NASA Stennis federal city. NASA/Danny Nowlin Christina Zeringue remembers being 10 years old, looking to the sky through her new telescope to view the Moon and planets on Christmas night. It opened her eyes to space and inspired her journey from the backyard to NASA’s Stennis Space Center near Bay St. Louis, Mississippi. “I became fascinated with astronomy and learning about stars and constellations, the solar system and planetary orbits, solar and lunar eclipses, and challenging myself to find stars and nebula at different distances from Earth,” Zeringue said. “I was able to do and learn so much just from my own yard.” She became obsessed with following the development and images produced from the Hubble Space Telescope, which launched on a space shuttle that featured three main engines tested at NASA Stennis. Zeringue desired to learn more about the universe and find a way to be part of the effort to continue exploring. The Kenner, Louisiana, native ultimately made her way to NASA Stennis following graduation from the University of New Orleans. As the NASA Stennis chief safety and mission assurance officer, Zeringue is responsible for safety and mission success of all site activities. These include both rocket propulsion testing and operation of the NASA Stennis federal city, where NASA and more than 50 federal, state, academic, public, and private aerospace, technology, and research organizations located onsite share in operating costs while pursuing individual missions. Christina Zeringue enjoys viewing the partial solar eclipse on Oct. 14, 2023, from Slidell, Louisiana. NASA/Danny Nowlin “I have a broad range of responsibilities, which allows me to work with many talented people, pushes me to learn and develop new skills, and keeps my work interesting every day,” Zeringue said. Zeringue’s work has supported NASA’s Artemis campaign to return astronauts to the Moon through her contributions to RS-25 engine testing and Green Run testing of NASA’s SLS (Space Launch System) core stage ahead of the successful launch of Artemis I. The Pearl River, Louisiana, resident often encounters engineering or safety challenges where there is not a clear answer to the solution. “We work together to understand new problems, determine the best course of action, and create new processes and ways to handle every challenge,” she said. In total, Zeringue has worked 28 years at NASA Stennis – 14 as a contractor and 14 with NASA. As a contractor, Zeringue initially worked as test article engineer for the Space Shuttle Main Engine Program. She followed that by serving as the quality systems manager, responsible for the quality engineering and configuration management of various engine systems, such as the space shuttle main engine, the RS-68 engine or Delta IV vehicles, and the J-2X upper stage engine. Zeringue transitioned to NASA in 2011, first as a facility systems safety engineer and then as chief of the operations support division within the NASA Stennis Safety and Mission Assurance Directorate. Her proudest career moment came early when working on final inspection of a new high pressure fuel turbopump. She noted a piece of contamination lodged behind the turbine shroud, which had been missed in previous inspections. Ultimately, the part was returned for disassembly before its next flight. “While our post-test inspections can sometimes become routine, that day still stands out to me as a way that I really knew I directly contributed to the safety of our astronauts,” she said. From the time Zeringue first looked through her new telescope, to her role as NASA Stennis chief safety and mission assurance officer, each moment along the way has contributed to the advice Zeringue shares with anyone considering a career with NASA. “Stay curious, invest in your own development, share your expertise with others, and try something new every day,” she said. Learn More About Careers at NASA Stennis

How a Childhood Telescope Launched a NASA Career Christina Zeringue remembers being 10 years old,...

www.nasa.gov/image-article/childhood-...

#Stennis #Space #Center

Result Details

Christina Zeringue is the chief safety and mission assurance officer at NASA’s Stennis Space Center. She is responsible for the safety and mission success of all activities, including rocket propulsion testing and operation of the NASA Stennis federal city. NASA/Danny Nowlin Christina Zeringue remembers being 10 years old, looking to the sky through her new telescope to view the Moon and planets on Christmas night. It opened her eyes to space and inspired her journey from the backyard to NASA’s Stennis Space Center near Bay St. Louis, Mississippi. “I became fascinated with astronomy and learning about stars and constellations, the solar system and planetary orbits, solar and lunar eclipses, and challenging myself to find stars and nebula at different distances from Earth,” Zeringue said. “I was able to do and learn so much just from my own yard.” She became obsessed with following the development and images produced from the Hubble Space Telescope, which launched on a space shuttle that featured three main engines tested at NASA Stennis. Zeringue desired to learn more about the universe and find a way to be part of the effort to continue exploring. The Kenner, Louisiana, native ultimately made her way to NASA Stennis following graduation from the University of New Orleans. As the NASA Stennis chief safety and mission assurance officer, Zeringue is responsible for safety and mission success of all site activities. These include both rocket propulsion testing and operation of the NASA Stennis federal city, where NASA and more than 50 federal, state, academic, public, and private aerospace, technology, and research organizations located onsite share in operating costs while pursuing individual missions. Christina Zeringue enjoys viewing the partial solar eclipse on Oct. 14, 2023, from Slidell, Louisiana. NASA/Danny Nowlin “I have a broad range of responsibilities, which allows me to work with many talented people, pushes me to learn and develop new skills, and keeps my work interesting every day,” Zeringue said. Zeringue’s work has supported NASA’s Artemis campaign to return astronauts to the Moon through her contributions to RS-25 engine testing and Green Run testing of NASA’s SLS (Space Launch System) core stage ahead of the successful launch of Artemis I. The Pearl River, Louisiana, resident often encounters engineering or safety challenges where there is not a clear answer to the solution. “We work together to understand new problems, determine the best course of action, and create new processes and ways to handle every challenge,” she said. In total, Zeringue has worked 28 years at NASA Stennis – 14 as a contractor and 14 with NASA. As a contractor, Zeringue initially worked as test article engineer for the Space Shuttle Main Engine Program. She followed that by serving as the quality systems manager, responsible for the quality engineering and configuration management of various engine systems, such as the space shuttle main engine, the RS-68 engine or Delta IV vehicles, and the J-2X upper stage engine. Zeringue transitioned to NASA in 2011, first as a facility systems safety engineer and then as chief of the operations support division within the NASA Stennis Safety and Mission Assurance Directorate. Her proudest career moment came early when working on final inspection of a new high pressure fuel turbopump. She noted a piece of contamination lodged behind the turbine shroud, which had been missed in previous inspections. Ultimately, the part was returned for disassembly before its next flight. “While our post-test inspections can sometimes become routine, that day still stands out to me as a way that I really knew I directly contributed to the safety of our astronauts,” she said. From the time Zeringue first looked through her new telescope, to her role as NASA Stennis chief safety and mission assurance officer, each moment along the way has contributed to the advice Zeringue shares with anyone considering a career with NASA. “Stay curious, invest in your own development, share your expertise with others, and try something new every day,” she said. Learn More About Careers at NASA Stennis

How a Childhood Telescope Launched a NASA Career Christina Zeringue remembers being 10 years old,...

www.nasa.gov/image-article/childhood-...

#Stennis #Space #Center

Result Details

# A Defining Era In 1975, NASA Stennis conducted its first test of a space shuttle main engine. The next 34 years of shuttle engine testing would help define the center and ensure its future as the nation’s premier propulsion test site. Scroll to Continue ## It is hard to describe the full impact of the space shuttle main engine test campaign on NASA Stennis. It is hundreds of stories, affecting all areas of center life, within one great story of team achievement and accomplishment. John Bailey NASA Stennis Director Featured Video ### An Incredible Hot Fire Campaign An overview of a historic chapter – space shuttle main engine testing at NASA Stennis. Watch More NASA Stennis Videos Featured Story # A Defining Era: NASA Stennis and Space Shuttle Main Engine Testing The numbers are notable – 34 years of testing space shuttle main engines at NASA’s Stennis Space Center near Bay… Read the Story ## Fascinating Facts From “testing like you fly” to testing performance limits, space shuttle main engine testing proved to be a fascinating NASA Stennis campaign. Find a World of Testing Facts about Fascinating Facts FACT SHEET ## Notable Numbers From No. 0001 to 820, 475, the numbers of space shuttle main engine testing at NASA Stennis tell a noteworthy tale. Learn about Testing Totals Space Shuttle Main Engine NASA/Stennis ## Milestone Moments Thirty-four years of space shuttle main engine testing at NASA Stennis provided any number of memorable moments. Revisit Key Test Moments about Milestone Moments ## Shuttle Testing Images 32 Images Go To Gallery Go To Gallery ### A Frontline Future Space shuttle main engine testing made history – and also laid the groundwork for a frontline future of national and commercial propulsion work at NASA Stennis.

A Defining Era A Defining Era In 1975, NASA Stennis conducted its first test of a space shuttle m...

https://www.nasa.gov/feature/a-defining-era/

#Stennis #Space #Center

Result Details

The numbers are notable – 34 years of testing space shuttle main engines at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, 3,244 individual tests, more than 820,000 seconds (totaling more than nine days) of cumulative hot fire. The story behind the numbers is unforgettable. “It is hard to describe the full impact of the space shuttle main engine test campaign on NASA Stennis,” Center Director John Bailey said. “It is hundreds of stories, affecting all areas of center life, within one great story of team achievement and accomplishment.” NASA Stennis tested space shuttle main engines from May 19, 1975, to July 29, 2009. The testing made history, enabling 135 shuttle missions and notable space milestones, like deployment of the Hubble Space Telescope and construction of the International Space Station. The testing also: * Established NASA Stennis as the center of excellence for large propulsion testing. * Broadened and deepened the expertise of the NASA Stennis test team. * Demonstrated and expanded the propulsion test capabilities of NASA Stennis. * Ensured the future of the Mississippi site. The first space shuttle main engine is installed on May 8, 1975, at the Fred Haise Test Stand (formerly A-1). The engine would be used for the first six tests and featured a shortened thrust chamber assembly. NASA ## Assignment and Beginning NASA Stennis was not the immediate choice to test space shuttle main engines. Two other sites also sought the assignment – NASA’s Marshall Flight Center in Alabama and Edwards Air Force Base in California. However, following presentations and evaluations, NASA announced March 1, 1971, that the test campaign would take place in south Mississippi. “(NASA Stennis) was now assured of a future in propulsion testing for decades,” summarized _Way Station to Space_ , a history of the center’s first decades. Testing did not begin immediately. First, NASA Stennis had to complete an ambitious project to convert stands built the previous decade for rocket stage testing to facilities supporting single-engine hot fire. Propellant run tanks were installed and calibrated. A system was fashioned to measure and verify engine thrust. A gimbaling capability was developed on the Fred Haise Test Stand to allow operators to move engines as they must pivot in flight to control rocket trajectory. Likewise, engineers designed a diffuser capability for the A-2 Test Stand to allow operators to test at simulated altitudes up to 60,000 feet. NASA Stennis teams also had to learn how to handle cryogenic propellants in a new way. For Apollo testing, propellants were loaded into stage tanks to support hot fires. For space shuttle, propellants had to be provided by the stand to the engine. New stand run tanks were not large enough to support a full-duration (500 seconds) hot fire, so teams had to provide real-time transfer of propellants from barges, to the run tanks, to the engine. The process required careful engineering and calibration. “There was a lot to learn to manage real-time operations,” said Maury Vander, chief of NASA Stennis test operations. “Teams had to develop a way to accurately measure propellant levels in the tanks and to control the flow from barges to the tanks and from the tanks to the engine. It is a very precise process.” NASA Stennis teams conduct a hot fire of the space shuttle Main Propulsion Test Article in 1979 on the B-2 side of the Thad Cochran Test Stand. The testing involved installing a shuttle external fuel tank, a mockup of the shuttle orbiter, and the vehicle’s three-engine configuration on the stand, then firing all three engines simultaneously as during an actual launch. NASA ## Testing the Way The biggest challenge was operation of the engine itself. Not only was it the most sophisticated ever developed, but teams would be testing a full engine from the outset. Typically, individual components are developed and tested prior to assembling a full engine. Shuttle testing began on full-scale engines, although several initial tests did feature a trimmed down thrust chamber assembly. The initial test on May 19, 1975, provided an evaluation of team and engine. The so-called “burp” test did not feature full ignition, but it set the stage for moving forward. “The first test was a monstrous milestone,” Vander said. “Teams had to overcome all sorts of challenges, and I can only imagine what it must have felt like to go from a mostly theoretical engine to seeing it almost light. It is the kind of moment engineers love – fruits-of-all-your-hard-labor moment.” NASA Stennis teams conducted another five tests in quick succession. On June 23/24, with a complete engine thrust chamber assembly in place, teams achieved full ignition. By year’s end, teams had conducted 27 tests. In the next five years, they recorded more than 100 annual hot fires, a challenging pace. By the close of 1980, NASA Stennis had accumulated over 28 hours of hot fire. The learning curve remained steep as teams developed a defined engine start, power up, power down, and shutdown sequences. They also identified anomalies and experienced various engine failures. “Each test is a semi-controlled explosion,” Vander said. “And every test is like a work of art because of all that goes on behind the scenes to make it happen, and no two tests are exactly the same. There were a lot of knowledge and lessons learned that we continue to build on today.” NASA Stennis test conductor Brian Childers leads Test Control Center operations during the 1000th test of a space shuttle main engine on the Fred Haise Test Stand (formerly A-1). on Aug. 17, 2006. NASA ## Powering History Teams took a giant step forward in 1978 to 1981 with testing of the Main Propulsion Test Article, which involved installing three engines (configured as during an actual launch), with a space shuttle external tank and a mock orbiter, on the B-2 side of the Thad Cochran Test Stand. Teams conducted 18 tests of the article, proving conclusively that the shuttle configuration would fly as needed. On April 12, 1981, shuttle Columbia launched on the maiden STS-1 mission of the new era. Unlike previous vehicles, this one had no uncrewed test flight. The first launch of shuttle carried astronauts John Young and Bob Crippen. “The effort that you contributed made it possible for us to sit back and ride,” Crippen told NASA Stennis employees during a post-test visit to the site. “We couldn’t even make it look hard.” Testing proceeded steadily for the next 28 years. Engine anomalies, upgrades, system changes – all were tested at NASA Stennis. Limits of the engine were tested and proven. Site teams gained tremendous testing experience and expertise. NASA Stennis personnel became experts in handling cryogenics. Following the loss of shuttles Challenger and Columbia, NASA Stennis teams completed rigorous test campaigns to ensure future mission safety. The space shuttle main engine arguably became the most tested, and best understood, large rocket engine in the world – and NASA Stennis teams were among those at the forefront of knowledge. NASA conducts the final space shuttle main engine test on July 29, 2009, on the A-2 Test Stand at NASA Stennis. The Space Shuttle Program concluded two years later with the STS-135 shuttle mission in July 2011. NASA ## A Foundation for the Future NASA recognized the effort of the NASA Stennis team, establishing the site as the center of excellence for large propulsion test work. In the meanwhile, NASA Stennis moved to solidify its future, growing as a federal city, home to more than 50 resident agencies, organizations, and companies. Shuttle testing opened the door for the variety of commercial aerospace test projects the site now supports. It also established and solidified the test team’s unique capabilities and gave all of Mississippi a sense of prideful ownership in the Space Shuttle Program – and its defining missions. No one can say what would have happened to NASA Stennis without the space shuttle main engine test campaign. However, everything NASA Stennis now is rests squarely on the record and work of that history-making campaign. “Everyone knows NASA Stennis as the site that tested the Apollo rockets that took humans to the Moon – but space shuttle main engine testing really built this site,” said Joe Schuyler, director of NASA Stennis engineering and test operations. “We are what we are because of that test campaign – and all that we become is built on that foundation.”

A Defining Era: NASA Stennis and Space Shuttle Main Engine Testing The numbers are notable – 34...

www.nasa.gov/centers-and-facilities/s...

#Stennis #Space #Center

Result Details

Robert Williams is a senior mechanical design engineer and the structures subject matter expert in the Engineering and Test Directorate at NASA’s Stennis Space Center. NASA/Danny Nowlin Living up to, and maintaining, the standard of excellence associated with NASA is what drives Robert Williams at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. A native of Gulfport, Mississippi, Williams said he has had the opportunity to work with and be mentored by “some truly exceptional” engineers, some with careers reaching back to the Apollo era. “I cannot overstate the vast amount of practical knowledge and experience we have at NASA Stennis,” Williams said. “We know how to get things done, and if we do not know, I can guarantee we will figure it out.” Williams is a senior mechanical design engineer and the structures subject matter expert for the NASA Stennis Engineering and Test Directorate. He provides technical oversight related to engineering mechanics and machine design by reviewing analysis and design packages from NASA Stennis contractors and NASA engineers for ongoing projects. Williams also supports projects by performing analysis and creating detailed models, drawings, and system level designs, mostly at the versatile four-stand E Test Complex, where NASA Stennis has 12 active test cells capable of various component, engine, and stage test activities to support the agency and commercial companies. In support of NASA’s Artemis campaign of returning astronauts to the Moon, Williams also has reviewed structural and pipe stress analysis for the exploration upper stage project that will test a new SLS (Space Launch System) rocket stage to fly on future Artemis missions. He performed similar review work for Green Run testing of the SLS core stage at NASA Stennis ahead of the successful launch of the Artemis I uncrewed mission around the Moon. Overall, Williams has been a part of projects on every test stand throughout more than eight years with NASA and five years as a contractor. He has been tasked with solving challenging problems, both individually and as a part of teams. There were times when he was not sure if he or the team would be able to solve the problem or address it effectively, but each time, the NASA Stennis team found a way. “Over the span of my career, I have yet to be in a situation where the challenge was not met,” he said. The opportunity to work with “pretty much all the major space companies in some capacity” is most interesting to Williams. “The best thing is that being a small organization within a relatively small center, there are always opportunities to develop new skills and capabilities to help fill a need or gap,” he said. No matter the task, Williams looks forward to supporting space innovation while living up to, and maintaining, the standard of excellence associated with NASA for the benefit of all.

NASA Stennis Employee Contributes to Innovative Work Living up to, and maintaining, the standard ...

www.nasa.gov/image-article/stennis-em...

#Stennis #Space #Center

Result Details

**Explore Lagniappe for March 2025**featuring** : ** * NASA Stennis Teams Install New Production RS-25 Engine for Upcoming Hot Fire * NASA Stennis Flashback: Learning About Rocket Engine Exhaust for Safe Space Travel * NASA in NOLA for Super Bowl ## Gator Speaks Gator Speaks NASA/Stennis Welcome to March. It is the month that refuses to sit still. One day, the sun is shining, and the next day, the wind is howling through the trees, especially in the 125,000-acre buffer zone at NASA Stennis. The buffer zone and location of NASA Stennis helps provide the right conditions for around-the-clock propulsion test capabilities. March, like NASA Stennis, is full of possibilities. The month kicks off a season of new beginnings. It is a time when farmers begin to plant seeds. Did you know powering space dreams at NASA Stennis is a lot like farmers planting seeds? Planting a seed is simple, yet profound. It signals a fresh start no matter if you are an experienced planter or if it is your first time. Picking the right seed, carefully choosing the spot, and preparing the soil are ways to get going. Anticipation begins in March as planters set the stage for something that will happen over time. Similarly, NASA Stennis is the right place to pick for many aerospace companies large and small. It is where the road to launch begins. Whether the company is brand new to the field, like a first-time planter, or more experienced, the soil is right at NASA Stennis. South Mississippi is where a team of experts can help companies achieve a successful outcome. Ah yes, the month of March and NASA Stennis are indeed alike. They both can be a bridge between what was and what is to come – one, a time of year and the other, a place to shake off the winter slumber, take a deep breath, and step into something new. There is something magical about planting seeds, just like there is something magical about powering space dreams at NASA Stennis. ## NASA Stennis Top News ### NASA Stennis Teams Install New Production RS-25 Engine for Upcoming Hot Fire NASA marked a key milestone Feb. 18 with installation of RS-25 engine No. E20001, the first new production engine to help power the SLS (Space Launch System) rocket on future Artemis missions to the Moon. Read More About the New Production ### NASA Stennis Flashback: Learning About Rocket Engine Exhaust for Safe Space Travel NASA’s Stennis Space Center near Bay St. Louis, Mississippi, is widely known as the nation’s largest rocket propulsion test site. Read More About the Diagnostic Test Facility ## Center Activities ### NASA in NOLA for Super Bowl NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin NASA Stennis representatives inspire the Artemis Generation at the Audubon Aquarium in New Orleans Feb. 7-8 with activities and displays highlighting space exploration, including NASA’s Artemis missions to the Moon. NASA/Danny Nowlin ### NASA Stennis Leaders Visit Kennedy Space Center NASA Stennis Deputy Director Christine Powell and NASA Rocket Propulsion Test Program Manager Michele Beisler tour the Vehicle Assembly Building to view the SLS (Space Launch System) rocket expected to fly on the Artemis II mission and the mobile launcher ground structure used to assemble, process, and launch SLS during a visit to NASA’s Kennedy Space Center on Jan. 31. NASA/Stennis NASA Stennis Deputy Director Christine Powell and NASA Rocket Propulsion Test Program Manager Michele Beisler tour the Vehicle Assembly Building to view the SLS (Space Launch System) rocket expected to fly on the Artemis II mission and the mobile launcher ground structure used to assemble, process, and launch SLS during a visit to NASA’s Kennedy Space Center on Jan. 31. NASA/Stennis NASA Stennis Deputy Director Christine Powell and NASA Rocket Propulsion Test Program Manager Michele Beisler tour the Vehicle Assembly Building to view the SLS (Space Launch System) rocket expected to fly on the Artemis II mission and the mobile launcher ground structure used to assemble, process, and launch SLS during a visit to NASA’s Kennedy Space Center on Jan. 31. NASA/Stennis ### Leadership Class Visits NASA Stennis The Pearl River County Leadership Class visits the Thad Cochran Test Stand (B-1/B-2) during a NASA Stennis tour on Feb. 20. NASA Stennis is at the front end of the critical path for the future of human deep space exploration through NASA’s Artemis campaign. The B-2 side of the Thad Cochran Test Stand is undergoing preparations for exploration upper stage testing. The upper stage is scheduled to undergo Green Run tests of its integrated systems before its first flight on the Artemis IV mission. The test series will culminate with a hot fire of the stage’s four RL10 engines, just as during an actual mission. NASA/Danny Nowlin ### Rocket Lab Leader Visits NASA Stennis NASA Stennis Director John Bailey, left, welcomes Richard French, Rocket Lab USA, Inc. vice president of business development and strategy of space systems, for a tour of NASA Stennis on Feb. 26. In 2022, NASA and Rocket Lab reached an agreement for the aerospace company to locate its engine test complex at NASA Stennis. The initial 10-year agreement between NASA and Rocket Lab includes an option to extend an additional 10 years. The Archimedes Test Complex includes 24 acres surrounding the site’s A-3 Test Stand. Archimedes is Rocket Lab’s liquid oxygen and liquid methane rocket engine to power its medium-lift Neutron rocket. The company successfully completed the first hot fire of the new Archimedes rocket engine at NASA Stennis in August 2024. NASA/Danny Nowlin ## NASA in the News * NASA’s Advancements in Space Continue Generating Products on Earth – NASA * What You Need To Know About the March 2025 Total Lunar Eclipse – NASA Science * More Than 400 Lives Saved with NASA’s Search and Rescue Tech in 2024 – NASA * Tests in Simulated Lunar Gravity to Prep Payloads for Moon ## Employee Profile: Jason Hopper NASA’s Jason Hopper is shown at the E Test Complex at NASA’s Stennis Space Center. NASA/Danny Nowlin Jason Hopper’s journey to NASA started with assessing the risk of stepping into the unknown. Read More About Jason Hopper ## Additional Resources * Artemis II to the Moon: Launch to Splashdown (NASA Mission Animation) ## Subscription Info Lagniappe is published monthly by the Office of Communications at NASA’s Stennis Space Center. The NASA Stennis office may be contacted by at 228-688-3333 (phone); ssc-office-of-communications@mail.nasa.gov (email); or NASA OFFICE OF COMMUNICATIONS, Attn: LAGNIAPPE, Mail code IA00, Building 1111 Room 173, Stennis Space Center, MS 39529 (mail). The Lagniappe staff includes: Managing Editor Lacy Thompson, Editor Bo Black, and photographer Danny Nowlin. **To subscribe to the monthly publication, please email the following tossc-office-of-communications@mail.nasa.gov – name, location (city/state), email address.**

Lagniappe for March 2025 Explore Lagniappe for March 2025 featuring: Gator Speaks Welcome to Marc...

www.nasa.gov/centers-and-facilities/s...

#Stennis #Space #Center

Event Attributes

Lagniappe for March 2025 Explore Lagniappe for March 2025 featuring: Gator Speaks Welcome to March. It is the month that refuses to sit still. One day, the sun is shining, and the next day, the wind is howling through the trees, especially in the 125,000-acre buffer zone at NASA Stennis. The buffer zone and location of NASA Stennis helps […]

Lagniappe for March 2025 Explore Lagniappe for March 2025 featuring: Gator Speaks Welcome to Marc...

www.nasa.gov/centers-and-facilities/s...

#Stennis #Space #Center

Event Attributes

NASA’s Jason Hopper is shown at the E Test Complex at NASA’s Stennis Space Center. NASA/Danny Nowlin Jason Hopper’s journey to NASA started with assessing the risk of stepping into the unknown. One day, while taking a break from his hobby of rock climbing at Mississippi State University, a fellow student noticed Hopper reading a rocket propulsion textbook with a photo of a space shuttle launch on the cover. Rocket propulsion – the technology that propels vehicles into space, usually through liquid rocket engines or solid rocket motors – is a highly complex field. Engineers rigorously test the propulsion systems and components to understand their capabilities and limitations, ensuring rockets can safely reach space. “A guy just walked up and randomly said, ‘Hey, my dad works testing rocket engines,’” Hopper recalled. Hopper, an aerospace engineering student at the time, did not know about NASA’s Stennis Space Center near Bay St. Louis, Mississippi. He soon would learn more. The fellow student provided him with contact information, and the rest is history. A Meridian, Mississippi, native, Hopper graduated from Mississippi State in 2007 and made his way to America’s largest rocket propulsion test site in south Mississippi. On the other side of Hopper’s risk of stepping into the unknown came the reward of realizing how far he had come from reading about rocket propulsion work to contributing to it. The career highlight happened when Hopper watched a space shuttle launch, powered in part by an engine he had fired up as a test conductor working at NASA Stennis. “You cannot really put it into words because it permeates all through you, knowing that you are a part of something that big while at the same time, you are just a little piece of it,” he said. Hopper transitioned from his contractor position to a civil servant role as test conductor when he joined NASA in 2011. His work as a test conductor throughout all the NASA Stennis test areas and as test director at the E Test Complex has benefited NASA and industry, while giving him a good perspective on the value of the center’s work. Among the projects he has played a large role in include the J-2X engine test program, build up for NASA’s SLS (Space Launch System) core stage hot fire ahead of the successful Artemis I launch and multiple projects throughout the E Test Complex. “We offer operational excellence that I would argue you cannot get anywhere else,” Hopper said. “NASA Stennis is a smaller, family-oriented center renowned for excellence in rocket propulsion testing. It is a small place, where we do amazing things.” Propulsion test customers at NASA Stennis include government and commercial projects. The NASA center is engaged in two projects to support the agency’s SLS rocket – testing of RS-25 engines to help power SLS launches and of NASA’s new exploration upper stage to fly on future missions to the Moon. Current commercial companies conducting work at NASA Stennis include Blue Origin; Boeing; Evolution Space; Launcher, a Vast company; Relativity Space; and Rolls-Royce. Three companies – Relativity Space, Rocket Lab, and Evolution Space – are establishing production and/or test operations onsite. After leaving south Mississippi for a four-year stint at NASA’s Marshall Spaceflight Center in Huntsville, Alabama, Hopper returned to NASA Stennis as risk manager of NASA’s Rocket Propulsion Test Program Office. In his day-to-day work, Hopper assesses risk around two questions – what is the risk and what do I really need to be focusing on? Making decisions through this filter helps the Poplarville, Mississippi, resident make the best use of the agency’s rocket propulsion test assets, activities, and resources. “With a risk perspective, if things are high risk, we need to address these items and focus our attention on them,” Hopper said. “If we lose a national test capability, that impacts more than just NASA; it impacts the nation because NASA is a significant enabler of commercial spaceflight.” Hopper helps oversee the maintenance and sustainment of propulsion test capabilities across four sites – NASA Stennis; NASA Marshall; NASA’s Neil Armstrong Test Facility in Sandusky, Ohio; and NASA’s White Sands Test Facility in Las Cruces, New Mexico. By establishing and maintaining world-class test facilities, the agency’s Rocket Propulsion Test Program Office ensures that NASA and its partners can conduct safe, efficient, and cost-effective rocket propulsion tests to support the advancement of space exploration and technology development. Hopper looks to the future with optimism. “We have an opportunity to redefine kind of what we as NASA and NASA Stennis do and how we do it,” he said. “Before, we were trying to help commercial companies figure things out. We were trying to get them up and going, but now we are in more of a support role in a lot of ways and so if you look at it, and approach it the right way, it can be very exciting.”

How NASA Employee Went from Rock Climbing to Rocket Propulsion Jason Hopper’s journey to NASA s...

www.nasa.gov/image-article/jason-hopp...

#Stennis #Space #Center

Event Attributes

NASA’s Stennis Space Center near Bay St. Louis, Mississippi, is widely known as the nation’s largest rocket propulsion test site. More than 35 years ago, it also served as a hands-on classroom for NASA engineers seeking to improve the efficiency of space shuttle main engines. From 1988 to the mid-1990’s, NASA Stennis engineers operated a Diagnostic Test Facility to conduct rocket engine plume exhaust diagnostics and learn more about the space shuttle main engine combustion process. The effort also laid the groundwork for the frontline research-and-development testing conducted at the center today. “The Diagnostic Test Facility work is just another example of the can-do, will-do attitude of the NASA Stennis team and of its willingness to support the nation’s space exploration program in all ways needed and possible,” said Joe Schuyler, director of the NASA Stennis Engineering and Test Directorate. ## The Diagnostic Test Facility work is just another example of the can-do, will-do attitude of the NASA Stennis team… joe schuyler NASA Stennis Engineering and Test Directorate Director Tests conducted at the Diagnostic Testbed Facility played a critical safety role for engine operations and also provided a real-time opportunity for NASA Stennis engineers to learn about exhaust diagnostics. NASA/Stennis An image shows the Diagnostic Testbed Facility test stand data acquisition trailer. NASA/Stennis ## The Need Envision a rocket or space vehicle launching into the sky. A trail of bright exhaust, known as the engine plume, follows. As metals wear down in the engines from the intense heat of the combustion process, the flame glows with colors, some visible, such as orange or yellow, and others undetectable by the human eye. The colors tell a story – about the health and operation of the engine and its components. For space shuttle main engines, which flew on multiple missions, engineers needed to understand that story, much as a doctor needs to understand the condition of a human body during checkup, to ensure future engine operation. Where better place to study such details than the nation’s premier propulsion test site? Paging NASA Stennis. An image shows the rocket motor and thruster at the Diagnostic Testbed Facility. NASA/Stennis An image shows the Diagnostic Testbed Facility blended team of NASA personnel and contractors. Kneeling, left to right, is Brantly Adams (NASA), Felix Bircher (Sverdrup Technology), Dennis Butts (Sverdrup Technology), and Nikki Raines (Sverdrup Technology). Standing, left to right, NASA astronaut John Young, Greg Sakala (Sverdrup Technology), Barney Nokes (Sverdrup Technology), John Laboda (Sverdrup Technology), Glenn Varner (NASA), Stan Gill (NASA), Bud Nail (NASA), Don Sundeen (Sverdrup Technology), NASA astronaut John Blaha. NASA/Stennis ## The Facility NASA Stennis has long enabled and supported innovative and collaborative work to benefit both the agency and the commercial space industry. When NASA came calling in the late 1980s, site engineers went to work on a plan to study space shuttle main engine rocket exhaust. The concept for an enabling structure about the size of a home garage was born in October 1987. Five months later, construction began on a Diagnostic Testbed Facility to provide quality research capabilities for studying rocket engine exhaust and learning more about the metals burned off during hot fire. The completed facility featured a 1,300-square-foot control and data analysis center, as well as a rooftop observation deck. Small-scale infrastructure was located nearby for testing a 1,000-pound-thrust rocket engine that simulated the larger space shuttle main engine. The 1K engine measured about 2 feet in length and six inches in diameter. Using a small-scale engine allowed for greater flexibility and involved less cost than testing the much-larger space shuttle engine. An image shows Sverdrup Technology’s Robert Norfleet as he preps the dopant injection system for testing at the Diagnostic Testbed Facility. The goal of the facility was to inject known metals and materials in a chemical form and then look at what emissions were given off. During one test, generally a six or 12 second test, operators would inject three known dopants, or substances, and then run distilled water between each test to clean out the system. NASA/Stennis An image shows engineers Stan Gill, Robert Norfleet, and Elizabeth Valenti in the Diagnostic Testbed Facility test control center. NASA/Stennis ## The Process Engineers could quickly conduct multiple short-duration hot fires using the smaller engine. A six-second test provided ample time to collect data from engine exhaust that reached as high as 3,900 degrees Fahrenheit. Chemical solutions simulating engine materials were injected into the engine combustion chamber for each hot fire. The exhaust plume then was analyzed using a remote camera, spectrometer, and microcomputers to determine what colors certain metals and elements emit when burning. Each material produced a unique profile. By matching the profiles to the exhaust of space shuttle main engine tests conducted at NASA Stennis, determinations could be made about which engine components were undergoing wear and what maintenance was needed.**** ## We learned about purging, ignition, handling propellants, high-pressure gases, and all the components you had to have to make it work…It was a very good learning experience. Glenn Varner NASA Stennis Engineer ## The Benefits The Diagnostic Testbed Facility played a critical safety role for engine operations and also provided a real-time opportunity for NASA Stennis engineers to learn about exhaust diagnostics. Multiple tests were conducted. The average turnaround time between hot fires was 18 to 20 minutes with the best turnaround from one test to another taking just 12 minutes. By January 1991, the facility had recorded a total of 588 firings for a cumulative 3,452 seconds. As testing progressed, the facility team evolved into a collection of experts in plume diagnostics. Longtime NASA Stennis engineer Glenn Varner serves as the mechanical operations engineer at the Thad Cochran Test Stand, where he contributed to the successful testing of the first SLS (Space Launch System) core stage onsite. However, much of Varner’s hands-on experience came at the Diagnostic Test Facility. “We learned about purging, ignition, handling propellants, high-pressure gases, and all the components you had to have to make it work,” he said. “It was a very good learning experience.” An image shows the Diagnostic Testbed Facility team working in the test control center. Seated, left to right, is Steve Nunez, Glenn Varner, Joey Kirkpatrick. Standing, back row left to right, is Scott Dracon and Fritz Policelli. Vince Pachel is pictured standing wearing the headset. NASA/Stennis ## The physical remnants of the Diagnostic Testbed Facility are barely recognizable now, but that spirit and approach embodied by that effort and its teams continues in force at the center. joe schuyler NASA Stennis Engineering and Test Directorate Director ## The Impact The Diagnostic Testbed Facility impacted more than just those engineers involved in the testing. Following the initial research effort, the facility underwent modifications in January 1993. Two months later, facility operators completed a successful series of tests on a small-scale liquid hydrogen turbopump for a California-based aerospace company. The project marked an early collaboration between the center and a commercial company and helped pave the way for the continued success of the NASA Stennis E Test Complex. Building on Diagnostic Testbed Facility knowledge and equipment, the NASA Stennis complex now supports multiple commercial aerospace projects with its versatile infrastructure and team of propulsion test experts. “The physical remnants of the Diagnostic Testbed Facility are barely recognizable now,” Schuyler said. “But that spirit and approach embodied by that effort and its teams continues in force at the center.” ### Additional Information _NASA Stennis has leveraged hardware and expertise from the Diagnostic Testbed Facility to provide benefit to NASA and industry for two decades and counting._ _The facility’s thruster, run tanks, valves, regulators and instrumentation were used in developing the versatile four-stand E Test Complex at NASA Stennis that includes 12 active test cell positions capable of various component, engine, and stage test activities._ _“The Diagnostic Testbed Facility was the precursor to that,” said NASA engineer Glenn Varner. “Everything but the structure still in the grass moved to the E-1 Test Stand, Cell 3. Plume diagnostics was part of the first testing there.”_ _When plume diagnostic testing concluded at E-1, equipment moved to the E-3 Test Stand, where the same rocket engine used for the Diagnostic Testbed Facility has since performed many test projects._ _The Diagnostic Testbed Facility thruster also has been used for various projects at E-3, most recently in a project for the exploration upper stage being built for use on future Artemis missions._ _In addition to hardware, engineers who worked at the Diagnostic Testbed Facility also moved on to support E Test Complex projects. There, they helped new NASA engineers learn how to handle gaseous hydrogen and liquid hydrogen propellants. Engineers learned about purging, ignition, and handling propellants and all the components needed for a successful test._ _“From an engineering perspective, the more knowledge you have of the processes and procedures to make propulsion work, the better off you are,” Varner said. “It applied then and still applies today. The Diagnostic Testbed Facility contributed to the future development of NASA Stennis infrastructure and expertise.”_

NASA Stennis Flashback: Learning About Rocket Engine Smoke for Safe Space Travel NASA’s Stennis...

www.nasa.gov/centers-and-facilities/s...

#Stennis #Space #Center

Event Attributes

<p>NASA marked a key milestone Feb. 18 with installation of RS-25 engine No. E20001, the first new production engine to help power the SLS (Space Launch System) rocket on future Artemis missions to the Moon.</p> <p>The engine, built by lead SLS engines contractor L3Harris (formerly Aerojet Rocketdyne), was installed on the Fred Haise Test Stand in preparation for acceptance testing next month. It represents the first of 24 new flight engines being built for missions, beginning with Artemis V.</p> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg"><img alt="new production RS-25 engine loading onto trailer for transporting to NASA Stennis" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" fetchpriority="high" height="2048" loading="eager" sizes="(max-width: 1365px) 100vw, 1365px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?w=1365" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg 1600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=768,1152 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=683,1024 683w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=1024,1536 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=1365,2048 1365w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=267,400 267w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=400,600 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=600,900 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=800,1200 800w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3142.jpg?resize=1333,2000 1333w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1365"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg"><img alt="crew members work to prep the new production RS-25 for delivery to NASA Stennis" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1365" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg 3600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=300,200 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=768,512 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=1024,683 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=1536,1024 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=2048,1365 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=400,267 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=600,400 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=900,600 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=1200,800 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3160.jpg?resize=2000,1333 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg"><img alt="new production RS-25 engine departing for installation on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1365" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg 3600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=300,200 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=768,512 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=1024,683 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=1536,1024 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=2048,1365 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=400,267 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=600,400 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=900,600 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=1200,800 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3194.jpg?resize=2000,1333 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg"><img alt="new production RS-25 engine arriving at the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1362" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg 3610w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=300,199 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=768,511 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=1024,681 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=1536,1021 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=2048,1362 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=400,266 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=600,399 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=900,598 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=1200,798 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3219.jpg?resize=2000,1330 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg"><img alt="new production RS-25 engine hoisted onto the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="2048" loading="lazy" sizes="(max-width: 1365px) 100vw, 1365px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?w=1365" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg 1600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=768,1152 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=683,1024 683w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=1024,1536 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=1365,2048 1365w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=267,400 267w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=400,600 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=600,900 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=800,1200 800w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3280.jpg?resize=1333,2000 1333w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1365"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg"><img alt="new production RS-25 engine suspended in air" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="2048" loading="lazy" sizes="(max-width: 1362px) 100vw, 1362px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?w=1362" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg 1596w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=768,1155 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=681,1024 681w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=1021,1536 1021w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=1362,2048 1362w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=266,400 266w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=399,600 399w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=599,900 599w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=798,1200 798w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3305.jpg?resize=1330,2000 1330w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1362"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg"><img alt="new production RS-25 engine is being lifted onto Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="2048" loading="lazy" sizes="(max-width: 1365px) 100vw, 1365px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?w=1365" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg 1600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=768,1152 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=683,1024 683w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=1024,1536 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=1365,2048 1365w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=267,400 267w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=400,600 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=600,900 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=800,1200 800w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3314.jpg?resize=1333,2000 1333w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1365"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1362" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg 3610w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=300,199 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=768,511 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=1024,681 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=1536,1021 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=2048,1362 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=400,266 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=600,399 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=900,598 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=1200,798 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3356.jpg?resize=2000,1330 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="2048" loading="lazy" sizes="(max-width: 1365px) 100vw, 1365px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?w=1365" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg 1600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=768,1152 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=683,1024 683w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=1024,1536 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=1365,2048 1365w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=267,400 267w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=400,600 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=600,900 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=800,1200 800w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3412.jpg?resize=1333,2000 1333w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1365"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="2048" loading="lazy" sizes="(max-width: 1362px) 100vw, 1362px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?w=1362" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg 1596w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=200,300 200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=768,1155 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=681,1024 681w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=1021,1536 1021w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=1362,2048 1362w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=266,400 266w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=399,600 399w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=599,900 599w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=798,1200 798w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3423.jpg?resize=1330,2000 1330w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="1362"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1365" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg 3600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=300,200 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=768,512 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=1024,683 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=1536,1024 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=2048,1365 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=400,267 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=600,400 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=900,600 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=1200,800 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3481.jpg?resize=2000,1333 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1365" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg 3600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=300,200 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=768,512 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=1024,683 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=1536,1024 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=2048,1365 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=400,267 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=600,400 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=900,600 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=1200,800 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3545.jpg?resize=2000,1333 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <div class="hds-media hds-module wp-block-image" id=""> <div class="margin-left-auto margin-right-auto nasa-block-align-inline"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-fit"><a href="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg"><img alt="crew installing the first new production RS-25 engine on the Fred Haise Test Stand" block_context="nasa-block" class="attachment-2048x2048 size-2048x2048" decoding="async" height="1365" loading="lazy" sizes="(max-width: 2048px) 100vw, 2048px" src="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?w=2048" srcset="https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg 3600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=300,200 300w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=768,512 768w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=1024,683 1024w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=1536,1024 1536w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=2048,1365 2048w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=400,267 400w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=600,400 600w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=900,600 900w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=1200,800 1200w, https://www.nasa.gov/wp-content/uploads/2025/02/s25-003-rs-25-install-3555.jpg?resize=2000,1333 2000w" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" width="2048"/></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18.</div> <div class="hds-credits">NASA/Danny Nowlin</div> </figcaption></div> </div> </div> <p>The NASA Stennis test team will conduct a full-duration, 500-second hot fire, providing critical performance data to certify the engine for use on a future mission. During missions to the Moon, RS-25 engines fire for about 500 seconds and up to the 111% power level to help launch SLS, with the Orion spacecraft, into orbit.</p> <p>The engine arrived at the test stand from the L3Harris Engine Assembly Facility on the engine transport trailer before being lifted onto the vertical engine installer (VEI) on the west side deck. After rolling the engine into the stand, the team used the VEI to raise and secure it in place.</p> <p>The upcoming acceptance test follows two certification test series that helped verify the new engine production process and components meet all performance requirements. Four RS-25 engines help launch SLS, producing up to 2 million pounds of combined thrust.</p> <p>All RS-25 engines for Artemis missions are tested and proven flightworthy at NASA Stennis prior to use. RS-25 tests are conducted by a team of operators from NASA, L3Harris, and Syncom Space Services, prime contractor for site facilities and operations.</p> <div class="nasa-gb-align-center nasa-button-link padding-y-1 padding-x-0 hds-module wp-block-nasa-blocks-related-link" id=""> <a aria-label="Explore More NASA Stennis Images" class="button-primary button-primary-md link-external-true" href="https://www.nasa.gov/gallery/stennis-images/" target="_self"><br/> <span class="line-height-alt-1">Explore More NASA Stennis Images</span><br/> <svg fill="none" viewbox="0 0 32 32" xmlns="http://www.w3.org/2000/svg"><circle class="button-primary-circle" cx="16" cy="16" r="16"></circle><path class="color-spacesuit-white" d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z"></path></svg><br/> </a></div> <div class="edit-post-link"></div>

NASA Stennis Teams Install New Production RS-25 Engine for Upcoming Hot Fire NASA marked a key mi...

www.nasa.gov/image-article/stennis-te...

#Stennis #Space #Center

Event Attributes