Comet from edge of solar system killed the dinosaurs: study
Issam Ahmed and Lucie Aubourg, Agence France-Presse
Posted at Feb 17 06:52 AM
WASHINGTON - Sixty-six million years ago, a huge celestial object struck off the coast of what is now Mexico, triggering a catastrophic "impact winter" that eventually wiped out three-quarters of life on Earth, including the dinosaurs.
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