This image contains a headshot of Jayke Nguyen a graduate student at the University of California in San Diego who is participating in the 2026 IPAC Visiting Graduate Student Research Fellowship. He is working on forward modeling of JWST NIRISS's aperture mask interferometry mode to uncover inner regions of planetary systems. His advisor during his fellowship is Alexandra Greenbaum. The headshot image shows a young Asian man with short, black hair and wire-rimmed glasses.

The Visiting Graduate Student Research Fellows have landed! 🚀🔭

@jayke.io joins us in Pasadena to work on the forward modeling of JWST's aperture mask interferometry (AMI) mode to uncover the inner regions of planetary systems. 🪐🪐🪐🛰️

More on #VGSRF: www.ipac.caltech.edu/page/graduate-fellowship-2027

We're proud to name Harry Teplitz as IPAC’s new Head of Science Staff and Roberta Paladini as Deputy Head!👏🔭

They will lead our scientific community by advocating for research, mentoring staff, and fostering career growth across the center.

Details: www.ipac.caltech.edu/news/harry-t...

How do you explore the most crowded area of the Milky Way? With precision and persistence 🔭

@nancyromansci.bsky.social is gearing up to study this region with the Galactic Bulge Time-Domain Survey. Read more about Roman's observing plans & IPAC's role here: roman.ipac.caltech.edu/news/journey...

Amaze! Amaze! Amaze! 🪨 🎶 🎵

@caltechipac.bsky.social scientist Catherine Clark was quoted in a @physicstoday.aip.org article about the science behind the book and recently released movie Project Hail Mary.

Check out her quote about Rocky's home planet here:
physicstoday.aip.org/news/science... 🔭⚛️🧪

🚀 This year’s Roman Science Conference registration is now OPEN!

🛰️”Shifting Landscapes in Astrophysics: New Frontiers to Explore with Roman” — from exoplanets to galaxy evolution and cosmology!

🗓️ July 13-16
📍 Caltech, Pasadena, CA
🔗 bit.ly/46D1Vmt

Last week in Pasadena: RAPID Response - Hot-Wiring 2026 ⚡️

We brought together the time-domain community for deep dives into next-gen surveys and AI-driven discovery. 

A rich, productive, and fun week filled with lively discussions and new collaborations. 🚀

Links to all talks: bit.ly/4lXmnVi

The class of 2026 NHFP Fellows is shown in this photo montage. The Einstein Fellows appear in the blue hexagons, the Hubble Fellows in the purple hexagons, and the Sagan Fellows in the teal hexagons. Artwork: NASA, ESA, Joyce Kang (STScI)

Congrats to the #NHFP class of 2026!

These 24 early-career scientists have been selected for the 2026 NASA Hubble Fellowship Program! Einstein, Hubble, and Sagan fellows represent the next generation of leaders in astrophysics. NExScI at IPAC supports the Sagan Fellows. 🌟🔭 go.nasa.gov/47lUaBA

⏳One week left to apply for the 2027 #VGSRF!⏳

Are you a grad student ready to take your research to the next level? Work with leading scientists on cutting-edge data from missions like Euclid, Roman, JWST, and more.🚀🔭

Tag a grad student who needs to see this!👇

www.ipac.caltech.edu/page/graduat...

This is a photo of five men standing side by side, each smiling and holding a color print of the March 2026 Nature Astronomy cover featuring their work. The individuals are (left to right): Stuart Shaklan, Ahmed Soliman, Keith Miller, Eliad Peretz, and John Mather. Image credit: Harriet Brettle/Caltech-Keck Institute for Space Studies

In this image, IPAC multimedia artist Keith Miller (left) stands next to Nobel Prize laureate John Mather (right), and both look at a color print of the Nature Astronomy cover art Miller is holding. Image credit: Harriet Brettle/Caltech-Keck Institute for Space Studies

This is a photo of the March 2026 Nature Astronomy cover with signatures from the artist, Keith Miller, and the four study leads whose work is being featured: Ahmed Soliman, Stuart Shaklan, Eliad Peretz, and John Mather. The journal's cover art depicts a ground-based telescope sending a laser to a space-borne shade that is blocking the Sun's light, making it easier to observe nearby planets. The text on the cover says "Imaging a nearby habitable world from the ground." Image credit: Harriet Brettle/Caltech-Keck Institute for Space Studies.

World-class research+world-class art=@nature.com Astro cover.

This supergroup collab between @kiss-caltech.bsky.social & Keith Miller from IPAC’s Science Engagement Lab is a fusion of science and vision. They celebrated by signing their masterpiece.🖊️🔭
www.nature.com/natastron/volumes/10/issues/3

🚨Update! Submit your memory or note of appreciation by text or video for George by March 20, 2026.

Specs:
✨Video length up to 5 min.
✨Accepted formats: .mp4 & .mov
✨File size up to 400 MB
✨Text files: .pdf or .doc

events.ipac.caltech.edu/chartingtheinfrareduniverse/page/share-a-message-or-video

Share a Message or Video for George!✨

Help make the celebration more meaningful with a memory or a note of appreciation about George's impact on you. Messages will be shared during the meeting.✍️ Submit video & text at events.ipac.caltech.edu/chartingtheinfrareduniverse/page/share-a-message-or-video

Charting The Infrared Universe Symposium

Celebrate George Helou’s 30+ year legacy at IPAC on March 30! ✨🔭

Join us for a hybrid symposium on the future of space-based astronomy. Attendance is free, but registration is required by March 16. events.ipac.caltech.edu/chartingtheinfrareduniverse

Congratulations to IPAC scientist @justtheletteru.bsky.social and her team, whose work on wobbly black holes and galaxy evolution made the cover of @science.org! 🔭

➡️Article: www.science.org/doi/10.1126/...

➡️IPAC story w/ #AAS247 press conference video: www.ipac.caltech.edu/news/astrono...

All-sky three color image using SPHEREx data. The Galactic Plane is flat across the center of the image, and dramatic swirls and loops of interstellar gas and dust tendrils creep up from the plane.

Today is the first anniversary of SPHEREx's launch! We have more than 60 TB of SPHEREx data, with more added every week. As of last month, users have downloaded more than a petabyte of SPHEREx data. Have you played with it yet? It's actually really fun data! irsa.ipac.caltech.edu/Missions/sph...

SPHEREx Data Explorer Videos - YouTube All the SPHEREx videos at IRSA

Heads up astronomers! Subscribe to @irsaipac.bsky.social's YouTube channel to catch video tutorials on how to get the most out of the SPHEREx archive. New data added weekly!

IRSA's SPHEREx playlist: www.youtube.com/playlist?lis... 🔭

After just 365 days in space, there is already a wealth of data (60 TB & counting!) to explore at @irsaipac.bsky.social, the home for all of the 102 infrared wavelengths SPHEREx can observe. 🔭

Happy first space birthday, SPHEREx! 🥳

One year ago today, SPHEREx launched from Vandenberg Space Force Base in California on March 11, 2025.

🔭🧵

This image contains information about the 2027 IPAC Visiting Graduate Student Research Fellowship (VGSRF) program. The Call for Applications is now open for graduate students who hold U.S. citizenship, national, or permanent resident status by the application deadline, which is Mrach 31, 2026. Applicants may be currently enrolled at US or non-US institutions. Learn more about the program at https://www.ipac.caltech.edu/page/graduate-fellowship-2027.

IPAC's Visiting Graduate Student Research Fellowship (#VGSRF) is accepting applications!
✨Gain research experience and mentoring from IPAC scientists
✨Access large science datasets🔭
✨Receive a monthly stipend
Browse the projects and apply by 3/31: www.ipac.caltech.edu/page/graduate-fellowship-2027

This is an image of Caltech astrophysicist Carl Grillmair. Visual description: The image focuses on Carl's head and shoulders; he is wearing a white shirt with gray stripes with short sleeves, and he is looking directly at the camera and smiling. Carl has a busy brownish-red bear and hair and with gray eyes.

Our IPAC community is in shock at the sudden loss of our colleague and friend, Carl Grillmair.
His curiosity and dedication shaped IPAC in countless ways. We've dedicated our science talk series, The Next Seven Minutes, to his memory.🔭 www.ipac.caltech.edu/news/ipac-mourns-passing-of-carl-grillmair

This image is a composite of artist's illustrations of NASA's Nancy Grace Roman Space Telescope pointing towards a lengthy collection of exoplanets against a background image of the Galactic Plane. The text says "2026 Sagan Summer Workshop" and the theme "Exoplanets with Roman Surveys: Microlensing and Transits July 20-24, 2026, Pasadena, California" followed by the hashtag #sagan2026.

⏰Time to Register for #sagan2026⏰

The hybrid workshop focuses on expected #exoplanet science from the @nasaromantelescope.bsky.social Galactic Bulge Time Domain Survey. Travel support requests for early-career participants are due 3/5. nexsci.caltech.edu/workshop/2026
🔭 #astrocode #instrumentation

Today we are simply known as IPAC, with over 150 staff members from researchers to developers to engineers and more, spanning the full spectrum of astronomy and planetary science.

Join us this year as we celebrate our 40th anniversary! #IPAC40 🔭

We began in the 1980's as a small group of scientists called the "Infrared Processing & Analysis Center" supporting the Infrared Astronomical Satellite (IRAS) mission, but now we have grown beyond our old acronym and have offices in two buildings on the Caltech campus.

#IPAC40 🔭

#OTD 40 years ago, IPACers moved to @caltech.edu campus!

This memo details the move to IPAC (the Morrisroe building) the week of February 3rd, 1986. Before moving, IPACers worked in an office building on Lake Avenue, a few blocks from Caltech.

#IPAC40 🔭

Catch the IPAC Director @tom-greene.bsky.social at Astronomy on Tap Feb. 9, 2026 @ 7:30pm!

The event is free and open to the public 🔭 🧪 ⚛️ #SciComm

This graphic contains two images. On the left is an illustration of the SPHEREx space telescope with an infrared view of space in the background. On the right is an all-sky mosaic image as an elliptical projection based on spectral data collected by the telescope between May and December 2025.

Big applause for the SPHEREx mission team for receiving the Explorers Club's 2026 Sylvia A. Earle Award for Exploration Excellence!👏👏👏

The award recognizes the mission's accomplishment of completing the first infrared map of the sky in 102 colors.
🌈🔭🏆 www.explorers.org/ecad-2026-awardees

ZTF image of M31

The twenty-fourth public data release from the Zwicky Transient Facility contains approximately 69.7 million images, 1043 billion source detections extracted from these images, and 5.32 billion light curves. irsa.ipac.caltech.edu/Missions/ztf...

We are especially excited to welcome you all back this summer for #AAS248 🔭 in our hometown of Pasadena, CA. We will be celebrating IPAC’s 40th anniversary!

Follow us on social media and keep an eye out for special programming we're hosting during the meeting! See you all soon ☀️

Another #AAS247 🔭 in the books = another wonderful, whirlwind of exciting astronomy happening and coming soon! 💨

From topics like Roman, Euclid, and SPHEREx, to NExScI, NED, IRSA, NITARP, Firefly, PRIMA, and SHERA — there was something for everyone. Thank you to all!

🔭 ⚛️ 🧪 👩‍🔬

🔭 ⚛️ 🧪