Earthly analog to Mars’ Yellowknife Bay

March 12, 2013 | 11:52 a.m.

NASA provided this Martian analog to the Yellowknife Bay area, where Curiosity has been exploring.  At left, a pit exposing clay-bearing lake sediments, deposited in a basaltic basin in southern Australia. At right is a core sample from the lakebed, with layered, clay-rich sediments. The layers show the changing lake chemistry and environmental conditions over time. (NASA/JPL-Caltech/Ames)

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