THEMIS Image of the Day, February 5, 2019. This VIS image shows part of the floor of Rabe Crater. The floor of Rabe Crater has undergone several surface changing events.
At some point after the crater was formed it was partially filled by a material laid down by wind or water action. This material has been eroded, creating a complex depression in the deposited material. The resultant sand has collected into the dunes seen in the image.