Dark Crater Rims
Photojournal: PIA16630
Source: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
Published: January 3, 2013

These mosaic images from NASA's Dawn mission show how dark, carbon-rich materials tend to speckle the rims of smaller craters or their immediate surroundings on the giant asteroid Vesta; Numisia Crater is shown at left.

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