<a href="https://en.wikipedia.org/wiki/Planum_Australe" class="extiw" title="en:Planum Australe">en:Planum Australe</a>, taken by <a href="https://en.wikipedia.org/wiki/Mars_Global_Surveyor" class="extiw" title="en:Mars Global Surveyor">en:Mars Global Surveyor</a>. Image credit: <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="en:NASA">en:NASA</a>/<a href="https://en.wikipedia.org/wiki/JPL" class="extiw" title="en:JPL">en:JPL</a>/<a href="https://en.wikipedia.org/wiki/MSSS" class="extiw" title="en:MSSS">en:MSSS</a>. Was <a href="https://en.wikipedia.org/wiki/Astronomy_Picture_of_the_Day" class="extiw" title="en:Astronomy Picture of the Day">en:Astronomy Picture of the Day</a> on 13 December 2001, source: <a rel="nofollow" class="external autonumber" href="http://antwrp.gsfc.nasa.gov/apod/ap011213.html">[1]</a>.
NASA
NASA