Here we see a flat-floored, rimless, and irregular pit near Elysium Mons, a volcano that is the fourth highest in elevation on Mars. How did this pit form?

ID: ESP_056778_2045
date: 6 September 2018
altitude: 283 km

https://uahirise.org/hipod/ESP_056778_2045
NASA/JPL-Caltech/UArizona
#Mars #science #NASA