Caption Spotlight (19 March 2019): Everything is (Well) Illuminated
The south polar layered deposits are icy layers that have been deposited over millions of years, preserving a climate history of Mars. In this image the layers are well illuminated to accentuate the topography.
A prior image of this location was acquired with the layered slope facing away from the sun, placing the layers in shadow. (The top of the cutout image is at a higher elevation.)
NASA/JPL/University of Arizona
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