Worm-like Markings on Vesta's Surface
Photojournal: PIA14696
Source: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
Published: September 9, 2011
This image from NASA's Dawn spacecraft shows dark material at impact craters, up to 12.5 miles-wide (20 kilometer-wide) and sets of worm-like tracks in the north-south direction.

ENLARGE

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