How to defend Earth from asteroids
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Phil Plait: How to defend Earth from asteroids
TEDxBoulder, Filmed Sep 2011; Posted Nov 2011
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.
Why you should listen to him:
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.
He worked for six years on the Hubble Space Telescope, and directed public outreach for the Fermi Gamma-ray Space Telescope. He is a past president of the James Randi Educational Foundation, and was the host of Phil Plait's Bad Universe, a documentary series on the Discivery Channel.
"I now know how many gallons of milk would be produced by a supernova, and that experiencing death by asteroid has a 1 in 700,000 chance of happening per lifetime."
Nancy Atkinson, Universe Today