Big Picture Science – Hidden History: David Morrison / Impact Extinction

by Gary Niederhoff on November 1, 2016

David Morrison / Impact Extinction
click to listen (trt 3:08)

Part 3 of Hidden History, featuring David Morrison, senior scientist at the NASA Ames Research Center, laying out evidence that an asteroid impact caused the mass extinction that ended the Cretaceous period.

Tagged as: dinosaurs, Geology, History, paleontology

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