Latest / Planetary Radio: Space Exploration, Astronomy and Science
Life on Mars...and Earth
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
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The skinny
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