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How to defend Earth from asteroids

Sixty-five million years ago the dinosaurs had a bad day. — Phil Plait


What's six miles wide and can end civilization in an instant? Astronomer and blogger Phil Plait reveals all the ways asteroids can kill, and what we must do to avoid them. Talk recorded 5 September 2011.

About the Speaker

Phil Plait blogs at Bad Astronomy, where he deconstructs misconceptions and explores the wonder of the Universe. Phil Plait is the Bad Astronomer. Not a bad astronomer, but a blogger for Discover Magazine who debunks myths and misconceptions about astronomy - and also writes about the beauty, wonder, and importance of fundamental research.

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