The icy steps on these Mars plains may be ancient wind-blown dust - Space.com

The icy steps on these Mars plains may be ancient wind-blown dust - Space.com
Wedged in between these Red Planet features are channels that may have been formed by water or lava.
Strange icy ridges imaged by NASA's Mars Reconnaissance Orbiter may show proof of dust, water or wind, depending on where you look. (Image credit: NASA/JPL-Caltech/UArizona) This icy labyrinth looks… [+3045 chars] Read More



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