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HiPOD 21 Apr 2022: Slow Changes at an Old Impact Crater
New impact craters on Mars are often darker than their surroundings and have lots of boulders in their interior. The crater in this image has all those attributes and looks like it may have occurred very recently; however, it’s been seen in images dating back 50 years to the Mariner 9 mission.
More: https://uahirise.org/hipod/ESP_072719_1970
NASA/JPL-Caltech/UArizona
