Astronomy4all
Well-Preserved Impact Crater with Ridges by Lunar and Planetary Institute on Flickr.Via Flickr:
Although the rim of this well-preserved crater and its smooth walls are very impressive, note also the spectacular collection of ridges draping the underlying topography on the floor of this crater.
What can account for the formation of the terrain at the crater floor? One possible reason might be the former icy flows at this latitude. High-resolution images like this can give us better insight
into these features.

Well-Preserved Impact Crater with Ridges by Lunar and Planetary Institute on Flickr.

Via Flickr:
Although the rim of this well-preserved crater and its smooth walls are very impressive, note also the spectacular collection of ridges draping the underlying topography on the floor of this crater.

What can account for the formation of the terrain at the crater floor? One possible reason might be the former icy flows at this latitude. High-resolution images like this can give us better insight
into these features.

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