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Date: 2010-04-13 22:26:29Origin of life Extraterrestrial life Panspermia Spaceflight RNA world hypothesis Abiogenesis Fred Hoyle Moon Life on Mars Astronomy Space Astrobiology | Add to Reading ListSource URL: www.sunsetastronomicalsociety.comDownload Document from Source WebsiteFile Size: 432,20 KBShare Document on Facebook |