"NASA's DART Mission Alters Asteroid's Shape Through High-Impact Collision"

NASA's DART mission, which aimed to test the planetary defense method by slamming into the moonlet Dimorphos around the asteroid Didymos, has revealed that the impact may have reshaped the asteroid, showing it to be a loose "rubble-pile" composition. The mission successfully reduced Dimorphos' orbit time around Didymos by 33 minutes, and new research using computer modeling suggests that the impact completely reshaped Dimorphos, ejecting 0.5-1% of its mass and redistributing 8%, leading to significant reshaping and resurfacing. These findings could inform future asteroid exploration missions and planetary defense strategies, with implications for the design of future planetary defense initiatives.