Shared September 10, 2019
Mars has an active surface, especially in the cold polar regions where carbon dioxide ice that binds soil together can evaporate in the summer and leave unstable terrain. Earlier this year another landslide from cliffs near the north pole was recorded, it's not the first by any means, but JPL engineer Doug Ellison used the time difference between the 3 colour channels to create a 3 frame animation showing the debris cloud moving over the Martian surface at about 70km/h. This was cool enough that I felt like sharing it along with a few other examples of shifting features on Mars.
Here's Doug's tweet:
And Here's the Original Image
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