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Last updated on April 17, 2014 at 10:51 EDT

Latest Younger Dryas impact hypothesis Stories

Scientist Calls Clovis Comet Theory Bogus
2013-01-30 20:42:49

Lee Rannals for redOrbit.com — Your Universe Online Researchers are contradicting one hypothesis that comet explosions may have ended the 9,000-year-old Clovis culture. The Clovis comet hypothesis was first reported in 2007, claiming a comet initiated the Younger Dryas cold period nearly 13,000 years ago. This period, also known as the Big Freeze, was a brief period of cold climatic conditions and drought, causing the collapse of the North American ice sheets. According to the...