Planetary Radio: Space Exploration, Astronomy And Science

We visit Harvard biologist Andrew Knoll for a conversation about finding life on the red planet. Emily Lakdawalla is seeing red on another of Earth's neighbors, and Bruce Betts spins a tale of Death Stars, cockroaches and trivia contests on What's Up!Learn more about your ad choices. Visit megaphone.fm/adchoices See omnystudio.com/listener for privacy information. See omnystudio.com/listener for privacy information.