Narrow Channels on Mars Were Formed by Rainstorms, New Study Claims

Mega-floods from groundwater may have formed the largest Martian channels, but rainstorms eroding the surface seem to have created narrow gully networks 3.7 billion years ago

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What carved these gulleys on Mars' surface? Rain, says new paper
What carved these gulleys on Mars' surface? Rain, says new paperCredit: NASA/JPL-Caltech/Arizona State U
Ruth Schuster
Ruth Schuster
Gulleys on MarsCredit: NASA/JPL-Caltech/Arizona State U

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