Imagining Life Beyond Earth: Biosignatures, Extremophiles, and the Quest for Universal Communication

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Experts across biology, astronomy, and linguistics, including Lisa Kaltenegger, Arik Kershenbaum, and David Gruber, are building testable ideas about alien life and how we might communicate with it by studying Earth extremophiles, biosignatures, exoplanet atmospheres, and whale vocalizations.

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Scientists are listening in on sperm whale conversations and studying Earths strangest microbes to prepare humanity for first contact with extraterrestrial life.