Rilles on Vesta's Surface
Photojournal: PIA14963
Source: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
Published: October 24, 2011

This image from NASA's Dawn spacecraft shows small rilles (scars) on asteroid Vesta's surface, mostly concentrated in the right half image, presumably due to impacts throwing out boulders, which crash across the surface scouring the rilles as they go.

ENLARGE

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