Previous Evidence of Water on Mars Now Identified as Grainflows - Dark features previously proposed as evidence for significant liquid water flowing on Mars have now been identified as granular flows, where sand and dust move rather than liquid water, according to new article in Nature Geoscience.

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Previous Evidence of Water on Mars Now Identified as Grainflows - Dark features previously proposed as evidence for significant liquid water flowing on Mars have now been identified as granular flows, where sand and dust move rather than liquid water, according to new article in Nature Geoscience.