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Pt. 3/3 Catastrophe

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Uploaded on Jan 24, 2011

Catastrophe
http://tinyurl.com/4pg33dc (DVD series, 2 discs.)
Presenter: Tony Robinson
Prof Ken Tankersley archaeologist Clovis-Age Comet Impact Theory asteroids catastrophic explosion 65 million years ago dinosaurs extinct
Prof Peter Schultz planetary geologist big gun NASA glacial ice sheet North America NEOs near earth objects
Prof Ed Beshore astronomer Meteor Crater Arizona 50,000_years_ago Tunguska event 1908
Prof Bill McGuire volcanologist
London

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