<p>A Crater for the Ages — Despite this large crater being extremely old, its edge is what we call “pristine” since it still remains fairly sharp. The crater is located in Acadalia Planitia.
</p><p>NASA/JPL/University of Arizona (291 km above the surface, less than 5 km across)
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Source: <a rel="nofollow" class="external text" href="https://www.uahirise.org/ESP_053290_2075">www.uahirise.org/ESP_053290_2075</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2018-09-14 13:34
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