3 Billion Years Ago: Was Mars Alive?

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Published Jul 15, 2020, 3:00 PM

Perseverance, NASA’s 2020 rover, leaves for the Red Planet in just days. Deputy project scientist Ken Williford tells us how it will look for signs of past life where there was once a Martian lake. He’ll also take us through his Jet Propulsion Lab facility where scientists are learning how to recognize the evidence of long ago biology here on Earth. Comet NEOWISE is still lighting up the northern hemisphere sky. Bruce Betts knows where to find it. We’ve also got great new prizes for the space trivia contest. Learn more at https://www.planetary.org/multimedia/planetary-radio/show/2020/0715-2020-ken-williford-perseverance.html

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