THEMIS: Noachis Terra dunes and gullies

Noachis dunes and gullies (THEMIS_IOTD_20170223)THEMIS Image of the Day, February 23, 2017. This VIS image shows part of an unnamed crater in Noachis Terra. Large gullies dissect the crater rim and dunes are located on the crater floor. (If gullies look like ridges, remember that the sunlight is coming from the right.)

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