Planetary Radio: Space Exploration, Astronomy and Science
Planetary Radio: Space Exploration, Astronomy and Science
The Planetary Society
How Long Was Mars Wet?
28 minutes Posted Oct 23, 2019 at 8:00 am.
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28:50
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Show notes

Planetary scientist Briony Horgan and her team want to know how long liquid water flowed on the surface of the Red Planet before that world froze. Long enough for life to appear and thrive? New work comparing Earth’s extremes may have provided clues. There’s gas in space, and some of it is inside astronauts. Bruce Betts shares the uncomfortable truth in this week’s What’s Up. Also, space headlines from The Downlink. Learn more about this week’s guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/1023-2019-briony-horgan.html