Landforms northwest of Herschel Crater. Herschel Crater is a 304 kilometer impact basin in the Martian Southern Hemisphere. We have imaged the crater enough times to learn that dunes here are not stationary but move over time. The crater is jointly named after the seventeenth/eighteenth century father and son astronomers William Herschel and John Herschel.
HiRISE Picture of the Day archive [More at links]