Add Yahoo as a preferred source to see more of our stories on Google. New research finds shocked quartz at key sites, strengthening the case for a comet airburst during Ice Age extinctions. (CREDIT: ...

Almost 13,000 years ago, North America underwent drastic changes at a rapid rate. Mammoths, mastodons, giant ground sloths, and many other large animals went extinct. Around the same time, the Clovis ...

An ancient fireball that blasted by a massive desert in Chile some 12,000 years ago created slabs of twisted glass that measure up to a foot and a half in length. That's according to a newly published ...

New evidence suggests that about 12,000 years ago, a comet which had possibly already broken into several pieces, exploded over the Atacama Desert in Chile. The heat from the explosion fused soil over ...