Did a Comet Cause a North American Die-Off around 13,000 Years Ago?
Monday, July 20, 2009 - 16:21
in Paleontology & Archaeology
Researchers have found shock-synthesized hexagonal diamonds on one of California's Channel Islands, which they say is the strongest evidence yet that a comet exploded in the atmosphere above North America, causing widespread extinctions there around 12,900 years ago. Skeptics, however, say the debate is far from over. [More]