Old spiders in the Mare Australe quadrangle, as seen by HiRISE under the HiWish program
Jim Secosky modified a NASA image.  NASA/JPL/University of Arizona/Secosky
2019-01-15
<a rel="nofollow" class="external free" href="http://hirise.lpl.arizona.edu/ESP_57547_1010">http://hirise.lpl.arizona.edu/ESP_57547_1010</a>