Planetary Radio: Space Exploration, Astronomy and Science

Flowing Water on Mars? Not So Much

Planetary Radio: Space Exploration, Astronomy and Science

Mars scientists dubbed them recurring slope lineae or RSLs. They sure looked like evidence of liquid water flowing down hillsides and ridges on the Red Planet. New research led by USGS Planetary Geologist Colin Dundas says otherwise.Learn more about your ad choices. Visit megaphone.fm/adchoices See omnystudio.com/listener for privacy information. See omnystudio.com/listener for privacy information.

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