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NASA James Webb Scientist on How We’ll Know if TRAPPIST-1 Is Home to Aliens

Scientists will be able to work out whether a group of nearby exoplanets are habitable or not by studying their potential atmospheres, a NASA expert has said.

The question of whether the TRAPPIST-1 exoplanets have atmospheres is “the most important” scientific investigation that anyone involved in the search for alien life is going to be doing for potentially a decade, NASA astrobiologist Shawn Domagal-Goldman told Newsweek.

Despite decades of scanning the skies for radio signals and an ever-growing list of exoplanets—the name given to planets orbiting other stars—scientists have never found evidence that life exists anywhere but Earth. If it does, the consequences to science, philosophy and religion could be profound.

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