Did we find signs of life on Mars?

NASA found a Martian rock that might have traces of ancient life. It's perhaps the most tantalizing revelation in the century-long search for Martian life. (Updated from 2022)

Guests: Katie Stack Morgan, project scientist for the Perseverance rover; Lindsay Hays, astrobiologist at NASA; Morgan Cable, research scientist for Perseverance; and Camden Miller, rover driver for Perseverance

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