Lava, not water, said cause of Mars beds

Mars Daily-Geoscience Professor David Leverington at Texas Tech University says what we interpret as the largest ancient riverbeds on Mars most likely were created by low-viscosity lava flows that ravaged the planet's surface.

A U.S. researcher says large, river-like channels seen on Mars were created not by water but by massive, fast-moving lava flows of a type we don't see on Earth.

Geoscience Professor David Leverington at Texas Tech University says what we interpret as the largest ancient riverbeds on Mars most likely were created by low-viscosity lava flows that ravaged the planet's surface.

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