SETI and NASA: From the Drake Era to Technosignatures

To the point

SETI is the search for intelligent life by listening for non-random electromagnetic signals, a historical arc from Frank Drake and the Cocconi–Morrison idea through NASA’s fluctuating involvement and a short-lived formal program in 1992, to ongoing private and grassroots efforts, with NASA still pursuing astrobiology and technosignatures and scholars like Douglas A. Vakoch, Philip Morrison, John Billingham, John Wolfe, and David C. Black contributing related works.

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NASA and the Search for Extraterrestrial Intelligence - NASA

Since the beginning of civilization, people have wondered if we are alone in the universe or whether there is intelligent life somewhere else. In the late