Sand dunes, natural consequence of the wind patterns, on Mars. Dark spots are due to seasonal frost that has sublimed away. Credit:NASA, JPL via /r/spaceporn https://ift.tt/2pqJrDC
via Tumblr https://ift.tt/33xcggv
Sand dunes, natural consequence of the wind patterns, on Mars. Dark spots are due to seasonal frost that has sublimed away. Credit:NASA, JPL via /r/spaceporn https://ift.tt/2pqJrDC
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