NASA smacked a spacecraft into an asteroid – and learned details about its 12-million-year history
- Written by Eleanor K. Sansom, Research Associate, Curtin University
Artist impression of ESA's Hera mission to Didymos and Dimorphos.ESA/Science OfficeNASA’s DART mission – Double Asteroid Redirection Test – was humanity’s first real-world planetary defence mission.
In September 2022, the DART spacecraft smashed into the companion “moon” of a small asteroid 11 million kilometres...



















