“A South Polar Pit or an Impact Crater?” was uploaded to Flickr

This observation from NASA's Mars Reconnaissance Orbiter show it is late summer in the Southern hemisphere, so the Sun is low in the sky and subtle topography is accentuated in orbital images. via NASA ift.tt/2s25Hnd
embiggen by clicking http://flic.kr/p/U836jQ
A South Polar Pit or an Impact Crater? was taken on June 02, 2017 at 05:31AM