This area of Mars has known active gullies, exhibiting both spectacular defrosting activity of carbon dioxide ice and major mass movements of material.

ID: ESP_056731_1115
date: Sunday, 2 September 2018
altitude: 250 km (155 mi)

https://uahirise.org/hipod/ESP_056731_1115
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA