Probable Water Stains on Mars

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These are images showing some of the darkest stains I have seen yet, some in combination with lighter (older?) stains.

These are almost inklike. What really causes these emissions and what are they composed of, and why doesn't the strong Martian winds disperse them??


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All Mars Orbiter Camera images are used courtesy of Malin Space Science Systems. Pursuant to the Image Use Policy , all original imaging credit is given to NASA/JPL/Malin Space Science Systems.