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Date: 2014-05-21 11:53:17Space Drake equation Search for extraterrestrial intelligence Otto Struve Project Ozma Extraterrestrial life Andrew Fraknoi Seth Shostak Carl Sagan Astronomy SETI Astrobiology | ASTRONOMY BEAT www.astrosociety.org Number 46 • April 5, 2010 Publisher: Astronomical Society of the Pacific Editor: Andrew FraknoiAdd to Reading ListSource URL: www.astrosociety.orgDownload Document from Source WebsiteFile Size: 715,97 KBShare Document on Facebook |