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A jumble of rocks

Image: NASA/Johns Hopkins APL
Image: NASA/Johns Hopkins APL

This, the last complete image of Dimorphos, was taken when DART was 7 miles (12 km) away and 2 seconds before impact. The image revealed Dimorphos to be an egg-shaped “rubble pile,” an asteroid weakly held together by loose conglomerations of debris, including bits of broken-up asteroids and moons.