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Dr. Gerald A. Soffen (February 7, 1926 — November 22, 2000) was a project scientist for the NASA’s Viking program of Mars landers.

This crater on Mars was named after him, and this image covers a small portion of the crater floor.

Here, we see a diversity of bedrock colors and textures and wind-blown (aeolian) features.


Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_047561_1560
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Layered Bedrock

This un-named crater in southwestern Arabia Terra contains a treasure! Layered sediments are the key to the puzzle of Martian history. They tell us about the conditions that existed when the sediments were deposited, and how they changed over time.