A piece of Mars: Some of the dunes on Mars are just plain weird. Here are some feather-shaped ones. I’m not sure anybody knows why they form these fractal shapes just yet. I don’t know of anything on Earth that looks like these. (HiRISE ESP_028024_1830 NASA/JPL/University of Arizona)

Comments (2)

  1. Beautiful!
    I am always so amazed at pictures from other worlds!

    1. Me too! That’s what got me into this business in the first place.

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