Satellite image of South Africa's Vredefort Crater.
NASA Earth Observatory image created by Lauren Dauphin, using Operational Land Imager (OLI) on Landsat 8; data provided courtesy of the U.S. Geological Survey team.
<a rel="nofollow" class="external text" href="https://eoimages.gsfc.nasa.gov/images/imagerecords/92000/92689/vredefort_oli_2018178_lrg.jpg">Image</a> and <a rel="nofollow" class="external text" href="https://earthobservatory.nasa.gov/images/92689/vredefort-crater">description</a>