Could a Martian rock hold the most promising sign of life beyond Earth? Microbiologist Peter Girguis unpacks NASA’s stunning discovery of ‘leopard spots’ on a rock from Mars’s Jezero Crater—and why they look eerily like the handiwork of microbes on our own planet.

For more, check out the <a href="https://podcasts.apple.com/us/podcast/particles-of-thought/id1832615266?i=1000735023960">extended interview</a> with Peter Girguis.

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When Black Holes Collide | Janna Levin

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