The biggest red herring in our search for alien life | Sara Seager

This interview is an episode from ‪The Well‬, our publication about ideas that inspire a life well-lived, created with the ‪John Templeton Foundation‬.

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Astrophysicist Sara Seager has redefined how we search for life, shifting the focus from definitive proof to the subtler, messier realm of possibility.

By detecting biosignature gases — molecules that might indicate life in a planet’s atmosphere — her work explores what discovery looks like when certainty isn’t guaranteed. Volcanic gases and unknown chemistry can mimi…