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Web Extra: The hunt for extraterrestrials

Scientists are developing new techniques to search for extraterrestrial intelligence — ones that could track down E.T.s even if they are trying to hide.
RELATED TOPICS: EXTRATERRESTRIALS
ET Signal

The search for extraterrestrial intelligence began in earnest in 1960 when astronomer Frank Drake started to eavesdrop on the stars Tau Ceti and Epsilon Eridani with the 85-foot radio telescope at the National Radio Astronomy Observatory in Green Bank, West Virginia. Drake didn’t find anything during his pursuit, dubbed “Project Ozma,” but he got other researchers thinking about ways to detect alien civilizations.

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