A hitchhiker’s guide to Hera’s target asteroids
Currently speeding through deep space at 12 km/s relative to Earth, ESA’s Hera spacecraft is due to reach its target Dimorphos asteroid this November. But if an astronaut were magically teleported onto the small-car-sized Hera upon arrival, what would they be seeing, and what would it feel like to walk on the asteroid’s surface?
Published by ESA on 09/23/2026