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/adchoicesSee <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

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/adchoicesSee omnystudio.com/listener for privacy information. See omnystudio.com/listener for privacy information.

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/adchoicesSee <a href="https://omnystudio.com/listener" rel="noopener noreferrer">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="noopener noreferrer">omnystudio.com/listener</a> for privacy information.

Flowing Water on Mars? Not So Much

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Science

Technology

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Share Flowing Water on Mars? Not So Much

Sign up to save your podcasts

Flowing Water on Mars? Not So Much

Flowing Water on Mars? Not So Much

More shows like Planetary Radio: Space Exploration, Astronomy and Science

StarTalk Radio

Big Picture Science

SpaceTime with Stuart Gary

Ask a Spaceman!

Astronomy Cast

Universe Today Podcast

The Quanta Podcast

Space Nuts: Astronomy Insights & Cosmic Discoveries

Houston We Have a Podcast

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

Daniel and Kelly’s Extraordinary Universe

The Supermassive Podcast

NASA's Curious Universe

Why This Universe?

The Astrophysics Podcast