For the first time, scientists have discovered shifting sand dunes and ripples all over Mars, a finding which suggests strong winds keep the sandy surface of the Red Planet much more active than ev
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[1] http://admin.indiaenvironmentportal.org.in/news/rover-discovers-shifting-sand-dunes-red-planet
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
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[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nasa
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