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ESA Technology
@ESA_Tech
5 Mar 2025
Dear space community, we are expanding our horizons! You can now find us on:

🟦 Bluesky: bsky.app/profile/techno…

🟨 LinkedIn: linkedin.com/company/esatec…

See you there! 👋
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ESA's Hera mission
@ESA_Hera
15h
This spacecraft selfie🤳from deep space shows the top deck of ESA's Hera asteroid mission🛰️& the sticker with Hera's newly-named dinosaur🦖mascot - meet Chicxu!
esa.int/articles/about…
Hera 'selfie' of its top level Asteroid Deck, taken by its corner Spacecraft Monitoring Camera. The image (left to right) shows the Chicxu the dinosaur sticker on the multi-layer insulation baffle covering the Laser Rangefinder, one of its Asteroid Framing Camera its two startrackers and its Thermal Infrared Imager.
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ESA's Hera mission
@ESA_Hera
Nov 5
Replying to @ESA_Hera
ESA invites accredited journalists to the Museum für Naturkunde Berlin on Wednesday, 25 November 2026, in person and online.

Leading experts will present the first detailed images of Dimorphos after NASA’s DART impact, acquired by ESA’s newly arrived Hera mission esa.int/media-advisori…
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ESA's Hera mission
@ESA_Hera
Nov 3
ESA's Hera spacecraft is nearing its destination; here are🔟asteroid mysteries that Hera will explore, including...
🤔Why was asteroid Dimorphos so strongly deflected by NASA's DART impact?
🤔Where did all its dust come from?
🤔What lies beneath its surface?
😲(#5 may surprise KokrgW
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ESA Technology
@ESA_Tech
Nov 2
RT @ESA_Hera: Practice picture from a ground version of Hera’s ‘selfie-cam’ Spacecraft Monitoring Camera, part of the Hera ‘Bench’ at @ohb…
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ESA's Hera mission
@ESA_Hera
Oct 28
🛰️🪨After 2 years in deep space, ESA's Hera mission for planetary defence is closing in on its target - Dimorphos, the 1st object in the Solar System to have had its orbit changed by human action, when NASA's DART impacted it in 2022
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Oct 27
At last ESA's Hera spacecraft for planetary defence has come close enough to resolve both bodies in the Didymos binary asteroid system separately - the smaller one was deflected by NASA's DART back in 2022 esa.int/Space_Safety/H…
Dimorphos seen separate from the larger Didymos by Hera's Asteroid Framing Camera from 1280 km away
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ESA's Hera mission
@ESA_Hera
Oct 16
Hera’s initial 93-minute braking manoeuvre on Thursday morning is confirmed to have performed within required parameters; the follow-up braking manoeuvre is scheduled for Thursday 22 October. Want to know more? Ask our Hera Space Companion hera.esa.int
Hera firing thrusters
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Oct 15
Read about Hera's forthcoming arrival at the Dimorphos asteroid in this space.com feature: space.com/space-explorat…
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Oct 9
Imagine throwing a ball up into the sky so hard & fast it just keeps going - that's our Hera mission, now nearing its target asteroids across millions of km of space.
🛰️ 🪨
But how does Herare it needs to go? That's the task of ESA's Flight Dynamics team esa.int/Space_Safety/H…
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Oct 8
"Are we there yet?"🛰️ 🪨

"NEARLY!"

📽️Watch the latest episode of our animated Incredible Adventure of Hera series: The Space Detectives Arrive!
esa.int/ESA_Multimedia…
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ESA Operations
@esaoperations
Oct 7
🚨🚨🚨On its second birthday in space, ESA's Hera mission for planetary defence has spotted its asteroid destination for the first time, from an approximate distance of 236 500 km away!

The Didymos system is actually two asteroids, seen as a single pixel for now
esa.int/ESA_Multimedia…
A boxed pixel in a starfield with a close up bottom right
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Oct 7
Launched two years ago today, ESA's Hera mission for planetary defence is preparing for its single most challenging activity since lift-off: the sustained braking manoeuvre allowing it to approach its target asteroids: esa.int/Space_Safety/H…
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ESA Technology retweeted
ESA Operations
@esaoperations
Oct 7
🎂Happy birthday Hera🛰️! ESA’s asteroid mission for planetary defence lifted off two years ago today!

📽️But where is Hera about to arrive at, and how might its discoveries one day help save planet Earth...?
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ESA Operations
@esaoperations
Sep 23
The ESA-JAXA Ramses planetary defence spacecraft has been turned on for the first time by its prime contractor @OHB_SE in Italy – marking a major milestone in its time-critical development schedule: esa.int/Space_Safety/P…
Switch on of the Ramses spacecraft at OHB ItaliaArtist's impression of the Ramses spacecraft approaching the Apophis asteroid
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Sep 23
Currently speeding through space at 12 km/s, ESA’s Hera spacecraft is due to reach its target Dimorphos asteroid this November. But if an astronaut were magically teleported onto Hera, what would they see & what would it happen if they let themself fall? esa.int/Space_Safety/H…
AI image of hypothetical astronaut looking at Hera's target asteroids
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Sep 14
Any questions? You can ask our Hera Space Companion right now - our AI fed with approved operational, scientific and technical knowledge, making ESA’s first planetary defence mission accessible to everyone! hera.esa.int
Hera Space Companion AI front page
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Josef Aschbacher
@AschbacherJosef
Sep 11
The International Space Summit marked an important step in shaping a common European vision for space exploration. Europe has now started a course towards greater autonomy in low Earth orbit, a stronger role in lunar exploration, and a more competitive European space sector, ble partner in international exploration efforts.

@ESA will work closely with its Member States in the months ahead, to support decisions later this year. The work continues from the Summit, through to ESA's Intermediate Ministerial Meeting in December, and onto our Council Ministerial in 2028 and beyond✨

Read the Call to Boost European Space Exploration to see what the Ministers of the European Space Agency declared during the #ParisSpaceSummit
👉elysee.fr/emmanuel-macro…
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ESA Technology retweeted
ESA's Hera mission
@ESA_Hera
Sep 12
Meet a key member of our Hera asteroid mission team: the Hera Space Companion, not just an AI chatbot but a dynamic communication platform, ready to answer all your questions!
hera.esa.int
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ESA Technology retweeted
ESA Operations
@esaoperations
Sep 10
An asteroid killed the dinosaurs because they didn’t have a space agency – so ESA’s Hera asteroid mission has a dino mascot (also aboard in real life!).

But our dino needs a name – that’s where you come in!

Suggest a winning name to join us at the unveiling of Hera’s 1st image co/lswnHOS0la
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ESA Technology retweeted
Josef Aschbacher
@AschbacherJosef
Sep 10
Will we be passengers or pilots? Customers or service providers? Tenants or architects? At the International Space Summit, I argued that Europe must take steps now to shape its own future in space.

Read my full speech 🧑‍🚀🚀
esamultimedia.esa.int/docs/corporate…
#ParisSpaceSummit
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