#PlanetaryDefence
Europe's Hera Begins Close-Up Asteroid Investigation

ESA's spacecraft is now surveying the Didymos system from just 25–30 km away, gathering evidence to improve future asteroid-deflection techniques.

#PlanetaryDefence #MarBro #ESA #HERA #SpaceNews

www.marbro.uk/news/3446409...
ESA's Hera Begins Close-Up Asteroid Investigation | MarBro
ESA's Hera spacecraft is surveying Didymos and Dimorphos from 25–30 kilometres away, investigating the aftermath of NASA's asteroid-deflection experiment.
www.marbro.uk
November 12, 2026 at 9:22 AM
☄️ Near Tunguska-Sized Asteroid Announced Just 8 Hours Before Earth Flyby

Asteroid 2026 VA was first detected on 1 November and passed Earth safely the following morning.

The concern isn't how close it came, but how late it was discovered.

Article in the comments.

#PlanetaryDefence
November 2, 2026 at 10:40 PM
Y un día para la llegada de #HeraMission a Didymos-Dimorphos @operations.esa.int #PlanetaryDefence
October 31, 2026 at 11:59 AM
Y seis días para la llegada de #HeraMission a Didymos-Dimorphos @operations.esa.int #PlanetaryDefence
October 26, 2026 at 11:03 AM
Y once días para la llegada de #HeraMission a Didymos-Dimorphos @operations.esa.int
#PlanetaryDefence
October 21, 2026 at 10:59 AM
www.esa.int/Enabling_Sup...

𝐘𝐨𝐮𝐫 𝐜𝐡𝐚𝐧𝐜𝐞 𝐭𝐨 𝐫𝐮𝐧 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐢𝐧 𝐝𝐞𝐞𝐩 𝐬𝐩𝐚𝐜𝐞 𝐨𝐧 𝐄𝐒𝐀'𝐬 𝐚𝐬𝐭𝐞𝐫𝐨𝐢𝐝 𝐦𝐢𝐬𝐬𝐢𝐨𝐧 !!

@esa.int #Hera #PlanetaryDefence #SpaceMission
@cnrs.fr @cnrs-insu.bsky.social @cnrscotedazur.bsky.social @obscoteazur.bsky.social @univcotedazur.bsky.social
Your chance to run software in deep space on ESA's asteroid mission
The European Space Agency is offering European researchers and companies a rare and exciting opportunity to run their innovative software directly in deep space aboard ESA’s Hera mission, millions of ...
www.esa.int
September 3, 2026 at 3:38 PM
It’s a question of when, not if, Earth will be hit by a large asteroid causing catastrophic consequences. How do we keep Earth safe? #PlanetaryDefence has innovative strategies, including kinetic impactors & nuclear deflection techniques, designed to alter the trajectory of these cosmic intruders. 🧪
Discover the fascinating world of planetary defense in this short clip: #PlanetaryDefense: Earth's Shield Against #Asteroids. Learn about innovative strategies, including kinetic impactors and nuclear deflection techniques, designed to alter the trajectory of these cosmic intruders. 🔭 #SpaceSafety
March 29, 2025 at 1:29 PM
Richard Moissl, head of #ESA’s #planetarydefence office, 54:00 : We have a blaringly obvious blind spot. Something like #chelyabinsk ☄️💥 could happen any moment right now, we wouldn't have any prewarning https://www.youtube.com/watch?v=8njR4413hok

#asteroidthreat
March 14, 2025 at 1:02 PM
{𝙖𝙅𝙎𝘿} OTOH, given all the warnings about contact with an advanced alien civilization, maybe he’s our accidental planetary defence system. 👽🚫🤡🌍
#TrumpIsAFailure #TrumpIsAThreat #PlanetaryDefence
March 25, 2026 at 6:15 PM
🪐 @esa works on #PlanetaryDefence by:
🔭 Tracking risky asteroids
📈 Predicting orbits & issuing warnings
🛡 Exploring ways to reduce impact threats

More info:
www.esa.int/Space_Safety...
www.esa.int
September 4, 2025 at 7:37 AM
Calling all #GraphicDesigners & #Artists! Here's your chance to become part of space history!
Design a mission patch for the #Milani #CubeSat, flying with
@ESA's #HeraMission for #PlanetaryDefence to the #Dimorphos #asteroid #MilaniPatchContest
www.esa.int/Space_Safety...
Design the patch for Hera’s Milani CubeSat
Milani needs you! This is your chance to design a mission patch for the Milani CubeSat which will fly with ESA's Hera planetary defence spacecraft to the Didymos binary asteroid system. 
www.esa.int
December 14, 2023 at 9:25 AM
Ramses and the Apophis flyby will be super exciting for #PlanetSci and #PlanetaryDefence. On top of all the detailed science, the closeness should allow near real-time streaming of HD video from the surface of the #asteroid at the same time as some parts of the world can see it from the ground!
It's 1500 days until the asteroid Apophis makes a close but entirely safe flyby of Earth on 13 April 2029! ESA's proposed Ramses mission would rendezvous with Apophis and study how it changes during the flyby. The mission's first CubeSat has been selected. 🪨🛰️

www.esa.int/Space_Safety...
First CubeSat joins ESA's Ramses mission to asteroid Apophis
www.esa.int
March 5, 2025 at 10:07 AM
We are just starting to understand the history of water in the solar system. Exciting results from NASA's OSIRIS-REx mission.

news.arizona.edu/news/asteroi...

#PlanetaryScience #Asteroids #PlanetaryDefence #OceanWorlds

@bot.astronomy.blue signup
January 30, 2025 at 2:37 PM
𝐑𝐀𝐌𝐒𝐄𝐒 :
A live discussion between Dr Patrick Michel of the @obscoteazur.bsky.social and Dr Makoto Yoshikawa of ISAS.
#apophis #ramses #destiny+ #PlanetaryDefence #SpaceSafety
www.youtube.com/watch?v=dBpR...
At 11.00 AM CET Dec., 3rd
Live from ISAS (JAXA) in Sagamihara
@cnrscotedazur.bsky.social
ミシェル博士、RAMSESを語る:ニース天文台ミシェル博士とISAS・吉川真の緊急対談
YouTube video by JAXA相模原チャンネル
www.youtube.com
December 2, 2025 at 4:02 PM
𝙰𝚎𝚐𝚒𝚜 𝚟𝚎𝚛𝚜𝚒𝚘𝚗 𝟻: 𝙵𝚊𝚜𝚝𝚎𝚛, 𝚖𝚘𝚛𝚎 𝚛𝚎𝚜𝚒𝚕𝚒𝚎𝚗𝚝, 𝚊𝚗𝚍 𝚛𝚎𝚊𝚍𝚢 𝚏𝚘𝚛 𝚝𝚑𝚎 𝚗𝚎𝚡𝚝 𝚐𝚎𝚗𝚎𝚛𝚊𝚝𝚒𝚘𝚗 𝚘𝚏 𝚊𝚜𝚝𝚎𝚛𝚘𝚒𝚍 𝚍𝚊𝚝𝚊
A news from ESA Near-Earth Objects Coordination Centre.
#spacesafety 👆 #lookup #planetarydefence European Space Agency - ESA #NEOCC 🌍🦕 ☄️
Aegis version 5: Faster, more resilient, and ready for the next generation of asteroid data - NEO
latest news
neo.ssa.esa.int
March 28, 2025 at 1:37 PM
THE #ESA #HERA PLANETARY DEFENCE MISSION science community website presents 𝐒𝐭𝐞𝐫𝐞𝐨 𝐢𝐦𝐚𝐠𝐞𝐬 𝐛𝐲 𝐒𝐢𝐫 𝐃𝐫 𝐁𝐫𝐢𝐚𝐧 𝐌𝐚𝐲!
#stereoscopy #planetarydefence #spacesafety #culture #science #knwoledge #planetology #planet #asteroid #moon #redspecial #redspatial
Get to know our Special Mission Member's work ⬇️🦕🎸😎🌍🔴
Stereo images by Sir Dr Brian May — Hera Mission
www.heramission.space
March 19, 2025 at 4:51 PM
Ever daydreamed about owning your own spaceship?
As the next best thing – thanks to a free app launching today – anyone with an Apple Vision Pro or Meta Quest 3 or 3S VR headset can have ESA’s Hera asteroid mission for planetary defence turn up in their own living room. 🚀🛰️🌌
#planetarydefence
Hera
Hera
www.esa.int
March 4, 2025 at 9:16 AM
❝𝐓𝐡𝐞 𝐚𝐬𝐭𝐞𝐫𝐨𝐢𝐝 𝐡𝐢𝐭𝐬 𝐚𝐧𝐝 𝐧𝐞𝐚𝐫-𝐦𝐢𝐬𝐬𝐞𝐬 𝐲𝐨𝐮 𝐧𝐞𝐯𝐞𝐫 𝐡𝐞𝐚𝐫 𝐚𝐛𝐨𝐮𝐭❞

A BBC news by Georgina Rannard, who interviewed Mark Boslough, Patrick Michel and Kathryn Kunamoto about Near-Earth Asteroid 2024 #YR4, stored (but recently lowered) in the Potentially Hazardous Asteroids list.
#spacesafety #planetarydefence
YR4 asteroid: The hits and near-misses you never hear about
Since a potentially hazardous asteroid was detected in December, tens of others objects have come close to Earth.
www.bbc.com
February 24, 2025 at 9:50 AM
For further information on our 2025 ESA Hera Science Community meeting, feel free to get to our website:
www.heramission.space/workshop-2025
#afterDARTcomesHera #spacesafety #planetarydefence
#AIDA #asteroid #impact #deflection #assessment
🦕🦖🌎🌍🌏🧑‍🔬🚀🛰️☄️
Workshop 2025 — Hera Mission
www.heramission.space
January 22, 2025 at 2:28 PM
Ever dreamt of showing your own personnal space probe to friends while enjoying apéritif on your living room sofa?
Guess what... now you can do it !
THANK YOU ESA! GO HERA!!!
#madeinEurope #ESA #Hera #planetarydefence #spacesafety #spacemission #dreamcometrue
Hera asteroid mission in your house
Hera asteroid mission in your house
www.esa.int
December 21, 2024 at 12:11 AM
#DART’s planned 22,000 kilometre-per-hour collision with asteroid #Dimorphos made even more of a bull’s-eye shot than expected. 💥🪨 The impact shortened the asteroid’s orbit around #Didymos by 32 minutes! #PlanetaryDefence
January 21, 2025 at 3:00 AM