SpaceOdysseyHub
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

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