THEMIS: On the edge of the south polar ice cap

On the edge (THEMIS_IOTD_20181220)THEMIS Image of the Day, December 20, 2018. At the bottom of this image is the layered edge of the south polar cap.

There are more layers visible between the bright polar material and the dark sand dunes at the top of the image. These mid-toned layers most likely still contain polar ice but probably underneath a thick dust cover.

See more THEMIS Images of the Day by geological subject.

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