activeESA
Hera (Asteroid Defense)
ESA's planetary defense mission to survey the aftermath of NASA's DART impact on asteroid Dimorphos. Launched October 2024, Hera will arrive at the Didymos-Dimorphos system in late 2026. Will measure the crater left by DART, determine Dimorphos's mass and internal structure, and deploy two CubeSats (Milani and Juventas) for close-range inspection.
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Budget
~EUR290M
Timeline
2024–2027
Key Milestones
Launched from French Guiana on Ariane 6
2024 — Oct
Arrive at Didymos-Dimorphos system
2026 — Late
Deploy Milani and Juventas CubeSats — complete detailed survey
2027
Contractors
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Sources
- esa.int/hera
- esa.int