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A New Frontier Is Opening in the Search for Extraterrestrial Life

Adam Frank: The search for technosignatures is becoming just as plausible and just as important as the search for biosignatures, to which the astronomical community is already deeply committed. Technosignatures represent the thrilling new face of SETI, embracing both anomaly-based searches and targeted explorations of exoplanets and their environments. NASA has been an essential part of this recognition: At the behest of Congress, the space agency convened its first meeting on what is now called “Technosignatures” Science in 2018. In 2019, my colleagues and I were awarded NASA’s first-ever research grant to study atmospheric technosignatures, and this year, NASA funded two other technosignature studies.

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