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Monday, August 5, 2013

Cosmic impact may have led to demise of early North American peoples

Cosmic impact may have led to demise of early North American peoples
Cambridge, Mass. (UPI) Aug 1, 2013 - North America may have suffered a large cosmic impact about 12,900 years ago that led to the demise of the early "Clovis" people, researchers say. Data from ice cores taken from Greenland show a layer of platinum during the same age as a known, abrupt climate transition, researchers at Harvard University reported. The finding supports suggestions of an impact that tipped the clim ... morehttp://www.spacedaily.com/reports/Cosmic_impact_may_have_led_to_demise_of_early_North_American_peoples_999.html

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