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#HeraMission

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Hera Aces A Massive Engine Burn On Its Way To Didymos In September 2022, humanity crashed a spacecraft into an asteroid - on purpose. The objective of NASA’s Double Asteroid Redirection Test (DART) was to see if we could intentionally modify the orbit of Dimorphos, the small moonlet orbiting the larger asteroid Didymos. According to all accounts, the mission worked spectacularly, but it was a one-way trip, so our ability to see what happened to the binary asteroid system has so far been limited to ground-based telescopes. That wasn’t good enough for the planetary defense community, so they planned a follow up mission called Hera, which, according to a recent press release from its operator, the European Space Agency (ESA), just successfully completed its most dramatic deep-space orbital maneuver.

Hera Aces A Massive Engine Burn On Its Way To Didymos #Science #Space #SpaceExploration #HeraMission #Didymos

www.universetoday.com/articles/hera-aces-a-mas...

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#HeraMission

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Diesen November wird es spannend: #ESA #BepiColombo kommt am Merkur an und #HeraMission wird fast zeitgleich Didymos/Dimorphos erreichen.

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Nur, dass ihr euch schon mal darauf vorbereiten könnt: Ende des Jahres wird die #ESA #heramission das Didymos #Asteroiden|system erreichen. Dann können wir erstmals vor Ort erkunden, was der #DART|Einschlag auf Dimorphos bewirkt hat. Stay tuned #DLR

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We await the #HeraMission arriving at #Didymos and #Dimorphos to see exactly what the #DARTMission did.

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Hera And Europa Clipper Will Pass Through 3I/ATLAS' Tail All sorts of crazy things have been suggested regarding 3I/ATLAS, the third known interstellar object that we’ve discovered. Some are simply conspiracy theories about it being an alien spacecraft, while...

Hera And Europa Clipper Will Pass Through 3I/ATLAS' Tail #Science #Space #SpaceExploration #HeraMission #EuropaClipper #3IATLAS

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#HeraMission

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ESA’s Hera targets early arrival at Didymos asteroids Launched one year ago, on 7 October 2024, the European Space Agency’s Hera mission is roughly halfway to its destination – the Didymos binary asteroid system.At Didymos, Hera will study the aftermath ...

#HeraMission

"ESA’s Hera targets early arrival at Didymos asteroids"

www.esa.int/Space_Safety...

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Gravitational scattering of ejecta in the Didymos system cannot explain the evolution of the binary's orbital period In the first few months following the DART impact on Dimorphos, it appears that the orbital period dropped by ${\sim} 30$ s in addition to the immediate ${\sim}30 $ min drop. This effect has been attr...

Today on the arXiv:

@harrisonagrusa.bsky.social & Camille Chatenet 2025, "Gravitational scattering of ejecta in the Didymos system cannot explain the evolution of the binary's orbital period" - arxiv.org/abs/2509.20197

More #DARTMission science in advance of the #HeraMission arriving.

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Session MITM18

The impact hazard session at #EPSCDPS2025 features overviews of the #DARTMission and the #HeraMission: meetingorganizer.copernicus.org/EPSC-DPS2025... .

And also a reminder of the importance of avoiding causing an impact hazard when addressing the impact hazard.

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Today in the Planetary Science Journal:

Lolachi et al. 2025, "Ejecta Mass Estimates from the DART Impact Plume Inferred from LICIACube Images" - iopscience.iop.org/article/10.3...

#DARTMission and #HeraMission science.

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The Hera Space Mission in the Context of Small Near-Earth Asteroid Missions in the Past, Present and Future

New review of #HeraMission science:

Michel et al. 2025, "The Hera Space Mission in the Context of Small Near-Earth Asteroid Missions in the Past, Present and Future" - link.springer.com/epdf/10.1007...

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https://iopscience.iop.org/article/10.3847/PSJ/addd1a/pdf

https://iopscience.iop.org/article/10.3847/PSJ/addd1a/pdf

Check out an interesting new paper on (among other things) the fate of the boulder called Bodhrán observed by the LICIACube flyby of the post impact DART debris field. Implications for the @esa.int #HeraMission . Irish people making jokes about our beloved bodhrán should go to the back of class.

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High-Speed Boulders and the Debris Field in DART Ejecta On 26 September 2022 the Double Asteroid Redirection Test (DART) spacecraft collided with Dimorphos, the moon of the near-Earth asteroid 65803 Didymos, in a full-scale demonstration of a kinetic impac...

Today on the #arXiv:

Farnham et al. 2025, "High-Speed Boulders and the Debris Field in DART Ejecta" - arxiv.org/abs/2506.16694

#DARTMission science with predictions for the #HeraMission.

And demonstrating how things can go sideways in a collision.

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The GRASS gravimeter in the thermal vacuum chamber

The GRASS gravimeter in the thermal vacuum chamber

An illustration of the Hera orbiter (left) connected to its two CubeSats, Juventas and Milani, via an inter-satellite communication link. The GRASS gravimeter is located onboard Juventas.

An illustration of the Hera orbiter (left) connected to its two CubeSats, Juventas and Milani, via an inter-satellite communication link. The GRASS gravimeter is located onboard Juventas.

The GRASS is always greener on the other side of the…asteroid? ☄️

On Earth, gravity points ‘down ’, but things aren't as simple on an asteroid. 🤔 Hera's GRASS instrument will measure Dimorphos's complex gravity precisely to learn about its structure.

ℹ️ www.dlr.de/en/blog/arch... #HeraMission

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Occultation data suggests that Dimorphos is considerably less dense than Didymos, or at least was before the #DARTMission impact.

Need more data; for which the #HeraMission is on the way.

#PDC2025

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Die #HeraMission der ESA ist vor sechs Monaten gestartet! Hera hat bereits aufregende Einblicke in zwei Planeten und ihre Monde erhalten, aber es gibt noch viel mehr zu sehen, wenn sie Ende 2026 den Asteroiden Didymos und seinen kleinen Mond Dimorphos erreicht.🛰️🔎🪨🪨

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#HeraMission

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A scanned photo showing a scruffy but nominally clean-shaven young white man wearing an oversized T-shirt standing next to a shorter Asian woman with short black hair. Both are smiling for the camera and are standing in a graduate student office.

A scanned photo showing a scruffy but nominally clean-shaven young white man wearing an oversized T-shirt standing next to a shorter Asian woman with short black hair. Both are smiling for the camera and are standing in a graduate student office.

A photo of an Asian woman, whose only signifier of age is a bit of gray hair, standing next to a scruffy, bearded, middle-aged man in a baseball cap. Both are smiling and standing in front of a statue of Ultraman.

A photo of an Asian woman, whose only signifier of age is a bit of gray hair, standing next to a scruffy, bearded, middle-aged man in a baseball cap. Both are smiling and standing in front of a statue of Ultraman.

It’s been nice to have a bit of a #DARTMission reunion here at the #HeraMission team meeting, particularly with Nakamura-san. Nobody on the DART team met me before she did in 1991 (though Kadono-san did meet me at the same time)!

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SCHEDULE and MEETING PROGRAMS :: Hera-ApophisT-4-RAMSES The Hera Community Meeting 2025 will take place on 7-11 April 2025 in Tokyo, together with the Apohis T-4 meeting and the first RAMSES Community meeting.

For people interested in asteroid science:

There are #HeraMission and #Apophis meetings this week, in Tokyo and online - www.hera-apophis-ramses-tokyo.org/en-us/meetin...

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📽️Why does #HeraMission need autonomous surface feature tracking for self-driving, recently tested at🔴Mars? When Hera ventures closest to its target asteroid, it will have no other way of navigating: www.esa.int/Space_Safety...

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Als die #HeraMission am Mars vorbeigeflogen ist, nahm sie autonom Dutzende von Einschlagskratern und anderen Oberflächenmerkmalen auf und verfolgte sie im Laufe der Zeit, um die selbststeuernde Technologie zu testen, die die Mission zur Navigation um ihre Ziel-Asteroiden einsetzen wird.

Mehr dazu 👇

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#HeraMission has a voice now! Thanks to developers at Terra Mater Studios, impactAI and @microsoft.com, you can now talk to Hera - curious how she feels after having recently flown by Mars and its moon Deimos? Take a listen 🔊

Have a chat with Hera Space Companion here 🤖 👉 hera.space

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🔴 The Hera probe captured exceptional images of #Mars and its #moon Deimos, while on its way to study the Dimorphos #asteroid, hit by DART in 2022! This close encounter represents a valuable scientific opportunity 🤩 #HeraMission 📸 @esa.int (photo 3 ESA/JAXA) 👉 swll.to/aCSw0g

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#HeraMission delivers incredible images of #Mars and #Deimos during its flyby. This mission rocks ☄️ @esa.int

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Wow! 🤩 #PlanetSci #Mars #HeraMission

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Probe captures rare images of moon orbiting Mars
Probe captures rare images of moon orbiting Mars YouTube video by B.C. Begley

Probe captures rare images of moon orbiting Mars
#ESA #HeraMission #Deimos #MarsMoons #AsteroidDefense
www.youtube.com/watch?v=D6LY...

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🛰️🔴 #HeraMission a survolé Mars et Deimos le 12 mars.
Des images quasi inédites de cette face de la petite lune ont été prises par 3 des instruments de la sonde européenne
@technology.esa.int

reves-d-espace.com/l...

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