Unusual Bipolar Crater
Photojournal: PIA15522
Source: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
Published: March 30, 2012

The left side of Helena crater on asteroid Vesta has a fresh and distinctive rim. Dark and bright material crops out of this part of the rim and slumps towards the center of the crater in this image from NASA's Dawn spacecraft.

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