Actually, there are several ridges on the floor of this impact crater in the southern mid-latitudes of Mars. What precisely is the nature of these ridges?

ID: ESP_055522_1400
date: Thursday, 31 May 2018
altitude: 250 km (155 mi)

https://uahirise.org/hipod/ESP_055522_1400
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA