Dark Asteroids Streak Vesta's Surface With Carbon, NASA Pr

Dark Asteroids Streak Vesta's Surface With Carbon, NASA Probe Finds
SPACE.com
Vesta used to be round—until it got hit by something nearly one-tenth its size. The resulting impact basin, named Rheasilvia, fills most of this image, taken from some 5,200 kilometers away. Vesta’s south pole lies in the mountains at lower rig
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