No sign yet of giant sandworms, but NASA’s Curiosity Mars rover has sent back close-up images that show sand ripples on the Red Planet’s dunes are of a type not found in Earth’s deserts. The information has provided new clues on the history of the planet’s atmosphere and provides another piece of the puzzle regarding the planet’s surface and how it’s changed over time.
.. Continue Reading Martian sand dunes boast unearthly qualities
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