"NASA's DART Mission Alters Asteroid's Shape Through Impact"

NASA's DART mission, which aimed to redirect an asteroid's trajectory, has revealed that its target, the moonlet Dimorphos, may have been reshaped by the impact, showing a loose "rubble-pile" composition. The impact reduced Dimorphos' orbit time around its larger asteroid companion by 33 minutes and may have significantly altered its shape and surface. The findings could inform future asteroid exploration missions and planetary defense strategies, with implications for the design of future planetary defense initiatives. The research was published in the journal Nature Astronomy, and further validation and refinement of the models will be pursued through the upcoming European Space Agency Hera mission.