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Hirise
Partially exposed bedrock is revealed within the Koval'sky impact basin.
Victoria Crater has a distinctive 'scalloped' shape to its rim, caused by erosion and downhill movement of crater wall material.
The holes visible in this image are not impact craters, but rather material that was ejected from a large crater called Hale that does not appear in here. Explosions formed moats, which have been partially covered over time by sand dunes (top).
The panoramic camera on NASA's Mars Exploration Rover Opportunity captured this scene of the west rim of Endeavour Crater during the summer of 2014.
Groups of dark brown streaks were photographed by the Mars Reconnaissance Orbiter on melting pinkish sand dunes covered with light frost.