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Back Spots appear in Spring, disappear in Summer

Spots appear in Spring, disappear in Summer



(A) Late springtime frost disappears from the dunes and they become dark.
(B) Early spring spots appear on the bright frosted surface of the dune field.

[Mars Orbiter Camera image processed by Malin Space Science Systems]

Last Update: 1 September 2019
9-Sep-2026 13:20 UT

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