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Sub-glacial melting, not flowing rivers, may explain martian channels

3 Aug 2020, 18:17 UTC
Sub-glacial melting, not flowing rivers, may explain martian channels Composite by Anna Grau Galofre/Arizona State University

As NASA’s Perseverance Mars rover hurtles toward the red planet to search for signs of ancient microbial life in river delta and lakebed deposits, new research indicates many of the valley networks scarring the surface of Mars were caused by water melting under glacial ice, not by free-flowing rivers.

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