Experts reaffirm asteroid impact caused mass extinction 65 million years ago (w/ Video)
Thursday, March 4, 2010 - 14:14
in Paleontology & Archaeology
(PhysOrg.com) -- Responding to challenges to the hypothesis that an asteroid impact caused a mass extinction on Earth 65 million years, a panel of 41 scientists re-analyzed data and provided new evidence, concluding that an impact in Mexico was indeed the cause of the mass extinction.