HiRISE is also a big fan of polar dunes! We acquired this image as a site for long term monitoring for any changes. On some of the ridges, frost is visible as well as dark spots caused by the process of sublimation that exposes the darker subsurface and will fade over time.
ID: ESP_076794_2605
​date: 14 December 2022
​altitude: 314 km
https://uahirise.org/hipod/ESP_076794_2605
​NASA/JPL-Caltech/University of Arizona
by Neaterntal
1 Comment
Incredible. Also, looks like the top of a Milky Way…