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Flowing sand, not water, left 'dark streaks' on Mars
Published : 24-11-2017 - Duration : 01:02 - View : 1
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Granular flows-grains of sand and dust slipping downhill-may have caused the “dark steaks” on Mars, which had been considered evidence for flowing water on the red planet.The findings argue against the presence of enough liquid water for microbial life to thrive at these sites.Continuing examination of these still-perplexing seasonal dark strea...
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