Monday, August 13, 2012

Does A Companion Star To Sun Cause Earth's Periodic Mass Extinctions? -- Science & Technology -- Sott.net

Does A Companion Star To Sun Cause Earth's Periodic Mass Extinctions? -- Science & Technology -- Sott.net: http://www.sott.net/articles/show/249555-Does-A-Companion-Star-To-Sun-Cause-Earth-s-Periodic-Mass-Extinctions-
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