ESA title

As part of the world’s first test of asteroid deflection, Hera will perform a detailed post-impact survey of the target asteroid, Dimorphos – the orbiting moonlet of a binary asteroid system known as Didymos.

Now that NASA’s DART mission has impacted the moonlet, Hera will turn the grand-scale experiment into a well-understood and repeatable planetary defence technique.

Demonstrating new technologies from autonomous navigation around an asteroid to low gravity proximity operations, Hera will be humankind’s first probe to rendezvous with a binary asteroid system and Europe’s flagship Planetary Defender.

Launch: 7 October 2024

Target: Asteroid Dimorphos

Rendezvous: November 2026

Hera
DART's moment of impact
Space Safety

Hera team congratulates NASA asteroid impactors

27/09/2022 9001 views 85 likes
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Plume ejects from Dimorphos as DART impacts
Space Safety

ESA to capture light from deflected asteroid’s new plume

26/09/2022 25253 views 79 likes
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DART impacting asteroid
Space Safety

ESA deep space network tracks DART asteroid impact

20/09/2022 15262 views 104 likes
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DART impacting Dimorphos
Space Safety

After NASA’s asteroid impact, ESA’s Hera comes next

01/09/2022 14911 views 101 likes
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Space Safety & Security at ESA
Space Safety

New home for Earth’s protectors

12/04/2022 10268 views 67 likes
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ESA's 4.5m tracking antenna, New Norcia, Western Australia
Enabling & Support

Catching asteroid deflection mission's first words

22/11/2021 13218 views 104 likes
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NASA's DART impacting asteroid
Space Safety

Planetary defenders: after NASA’s DART comes ESA’s Hera

18/11/2021 8340 views 79 likes
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Ariane 6 will use an optional add-on Astris kick stage developed by ArianeGroup to target new missions
Enabling & Support

Ariane 6 targets new missions with Astris kick stage

13/07/2021 11382 views 76 likes
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Milani scans Didymos
Space Safety

CubeSat will sift asteroid secrets from reflected sunshine

30/06/2021 6482 views 53 likes
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Milani studies asteroid dust
Space Safety

CubeSat named for pioneer of European planetary defence

30/06/2021 3144 views 26 likes
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Space Safety
Space Safety

Hang out with Europe’s top space experts

23/06/2021 8707 views 56 likes
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NASA's DART impacting asteroid
Enabling & Support

Sourcing space debris and surveying asteroid smash: challen…

07/06/2021 1863 views 34 likes
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Hera in space
Space Safety

The Incredible Adventures of the Hera mission – Presenting …

01/06/2021 6273 views 76 likes
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Stero view of simulated Didymos breakup
Space Safety

Brian May helps show Hera’s target asteroid may be ‘dust bu…

30/03/2021 4411 views 37 likes
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Still from Hera full dome show
Space Safety

ESA’s Hera mission – fulldome show for planetaria

02/02/2021 5246 views 48 likes
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Hera leaving Earth
Space Safety

Ireland helping ESA’s Hera asteroid mission find its way

11/12/2020 21559 views 54 likes
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Reentry of Hayabusa2's sample capsule
Space Safety

Hera team congratulates JAXA on asteroid sample return

06/12/2020 6710 views 145 likes
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Infrared imaging of the impact crater
Space Safety

Industry starts work on Europe’s Hera planetary defence mis…

15/09/2020 9006 views 63 likes
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Didymos asteroids
Space Safety

Name given to asteroid target of ESA’s planetary defence mi…

23/06/2020 7185 views 33 likes
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Space Safety
Space Safety

An Agency for asteroids

23/06/2020 4737 views 27 likes
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Incoming asteroid
Space Safety

ESA highlights protection for our planet ahead of Asteroid …

22/06/2020 8390 views 67 likes
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Brian May, Astrophysicist and Rockstar
Space Safety

Queen’s Brian May works to probe origin of asteroids

02/06/2020 10622 views 64 likes
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Hera leaving Earth
Space Safety

Amateur astronomers: help choose asteroid flybys for Hera

26/11/2019 4231 views 34 likes
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Juventas CubeSat closing on asteroid
Space Safety

Luxembourg firm enabling peek inside asteroid

18/11/2019 2892 views 21 likes
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Hera scans DART’s impact crater
Space Safety

Apollo astronaut champions Hera for planetary defence

05/11/2019 3732 views 44 likes
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Juventas radar CubeSat
Space Safety

Hera’s radar CubeSat will peer into asteroid’s heart

23/10/2019 3247 views 5 likes
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NASA's DART impacting asteroid
Space Safety

Driving diamond into asteroid dust helps model planetary de…

19/09/2019 2837 views 13 likes
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Hera approaches the impact scene
Space Safety

A burst of asteroid activity in Europe

10/09/2019 13286 views 101 likes
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Hera at Dimorphos
Space Safety

Europe and US teaming up for asteroid deflection

02/09/2019 31038 views 162 likes
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CubeSat approaching asteroid
Space Safety

When CubeSats meet asteroid

28/06/2019 6616 views 78 likes
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DART impacting asteroid
Space Safety

Will DART make its target asteroid go wobbly? Hera will see

27/06/2019 3614 views 54 likes
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Asteroid Ryugu
Space Safety

ESA marks Asteroid Day on 30 June

24/06/2019 6214 views 57 likes
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Hera surveying Dimorphos
Space Safety

Hera asteroid mission’s brain to be radiation-hard and fail…

11/06/2019 5275 views 65 likes
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Side by side observation and artist's impression of Asteroid 1999 KW4
Space Safety

Binary asteroids, key to Earth’s planetary defence

04/06/2019 7514 views 56 likes
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Hera mission patch
Space Safety

Hera gets its own logo

03/05/2019 3174 views 15 likes
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APEX CubeSat
Space Safety

Hera’s APEX CubeSat will reveal the stuff that asteroids ar…

02/05/2019 7023 views 68 likes
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Juventas CubeSat
Space Safety

Hera’s CubeSat to perform first radar probe of an asteroid

01/05/2019 9920 views 87 likes
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SCI impactor on way to Ryugu asteroid
Space Safety

Earth vs. asteroids: humans strike back

22/04/2019 12848 views 148 likes
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Infrared imaging of the impact crater
Space Safety

Self-driving spacecraft set for planetary defence expedition

05/04/2019 7109 views 64 likes
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Bright spots on Ceres
Space Safety

ESA’s Hera asteroid mission borrows eyes of NASA’s Dawn

18/03/2019 7988 views 96 likes
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Gran Telescopio Canarias telescope
Space Safety

World’s best telescopes target asteroids for ESA’s Hera mis…

05/03/2019 4627 views 38 likes
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Hera spacecraft
Space Safety

Close encounters: planning for extra Hera flyby

20/02/2019 5380 views 81 likes
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Hera at Didymos
Space Safety

ESA plans mission to smallest asteroid ever visited

04/02/2019 15978 views 131 likes
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Hera networking with CubeSats
Space Safety

CubeSats joining Hera mission to asteroid system

07/01/2019 13472 views 117 likes
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Andrea Milani (1948–2018)
Space Safety

Andrea Milani (1948–2018)

29/11/2018 4963 views 28 likes
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Hera validates crater formation models
Space Safety

Berlin museum hosts meeting on Europe’s next asteroid missi…

13/11/2018 2124 views 32 likes
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Hera CubeSats deployed
Space Safety

ESA choosing CubeSat companions for Hera asteroid mission

25/09/2018 5763 views 49 likes
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Hera networking with CubeSats
Space Safety

Germany’s OHB to bring ESA’s Hera asteroid mission to next …

10/08/2018 6188 views 44 likes
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Asteroid Ryugu
Space Safety

Spinning-top asteroids, from Rosetta to Hayabusa2 – and may…

18/07/2018 8438 views 85 likes
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Asteroid Day 2018 live from Luxembourg
Enabling & Support

Asteroid Day live from Luxembourg

28/06/2018 5546 views 52 likes
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