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Phil Plait:
How to defend Earth from asteroids

TEDxBoulder 2011 · 14:16 · Filmed Sep 2011
Subtitles available in 34 languages
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Phil Plait: How to defend Earth from asteroids
14:16 · Filmed September 2011 at TEDxBoulder 2011 · Subtitles available in 34 languages

What's six miles wide and can end civilization in an instant? An asteroid — and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them. (Filmed at TEDxBoulder.)

Astronomer
Phil Plait blogs at Bad Astronomy, where he deconstructs misconceptions and explores the wonder of the universe. Full bio
This talk was presented to a local audience at TEDxBoulder 2011, an independent event. TED editors featured it among our selections on the home page.

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