Mars Reconnaissance Orbiter captures the springtime thaw of seasonal carbon dioxide ice on Mars.
I have been interested in seasonal changes and dry ice / dune dynamics on Mars for a long time, and this video is just what I hoped to see. It shows
how the dark sand cascades down the dunes after being freed from the frozen CO2.
Remember the "trees on Mars" thread and pictures? Well, this video hopefully dispells the notion that some people got about them being trees. Below
is a screenshot from the video, showing those dark sand slides:
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