How Long Was Mars Wet? _on Planetary Radio
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 Earths extremes may have provided clues. Theres gas in space, and some of it is inside astronauts. Bruce Betts shares the uncomfortable truth in this weeks Whats Up. Also, space headlines from The Downlink. Learn more about this weeks guest and topics at: http://www.planetary.org/multimedia/planetary-radio/show/2019/1023-2019-briony-horgan.html
Featured Speakers: Briony Horgan, Purdue University/Bruce Betts, Planetary Society Chief Scientist/Host Mat Kaplan
This show was broadcast on October 29, 2019.