According to a NASA expert, researchers will be able to determine whether or not a collection of nearby exoplanets are habitable by looking at their potential atmospheres.
According to NASA astrobiologist Shawn Domagal-Goldman, the investigation into whether the TRAPPIST-1 exoplanets have atmospheres is “the most important” that anyone working on the search for extraterrestrial life will be conducting for a possible decade.
Scientists have searched the skies for radio signals for decades, but they have never discovered proof that life exists anywhere besides Earth. Exoplanets are planets that orbit other stars, and their list is constantly expanding. If so, there may be significant repercussions for philosophy, science, and religion.