<p>Ribbed Terrain in Deuteronilus Mensae — In addition to the ribbed terrain, there are also narrow cracks as well as upper plains material. The spots with ribbed terrain appear to be lower than the surrounding surfaces. Pictures like this may help us determine how much ice was lost from the upper plains unit in forming the ribbed terrain.
</p><p>NASA/JPL/University of Arizona (304 km above the surface, less than 5 km across)
</p><p>Source: <a rel="nofollow" class="external text" href="https://www.uahirise.org/ESP_053129_2250">www.uahirise.org/ESP_053129_2250</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2018-09-05 15:19
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/42706921340/">ESP_053129_2250</a>