Dokka Crater is 52-kilometers in diameter and located in the north polar region of Mars. Its interior is presumably a remnant of a former polar cap with larger extension, so it could provide valuable information about the past Martian conditions. (see: Analysis of Frost Inside and Around Dokka Crater in the North Polar Region of Mars)

ID: ESP_054968_2575
date: 18 April 2018
altitude: 317 km

https://uahirise.org/hipod/ESP_054968_2575
NASA/JPL-Caltech/UArizona
#Mars #science #NASA