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Date: 2006-08-09 23:10:34Spaceflight Search for extraterrestrial intelligence Active SETI Allen Tough Stuart Kingsley SETI Institute The Universe Alien language Contact Astrobiology SETI Extraterrestrial life | Section V, Paper 6 How to Achieve Contact: Five Promising Strategies Allen ToughAdd to Reading ListSource URL: ieti.orgDownload Document from Source WebsiteFile Size: 120,53 KBShare Document on Facebook |