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Image: Hues in a Martian crater slope

Impact craters expose the subsurface materials on the steep slopes of Mars. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in ...

dateJan 05, 2017 in Space Exploration
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Image: Dione's contrasts

Dione reveals its past via contrasts in this view from NASA's Cassini spacecraft. The features visible here are a mixture of tectonics—the bright, linear features—and impact cratering—the round features, which are spread ...

dateAug 23, 2016 in Space Exploration
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