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3 Ways to Save Earth from an Asteroid

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Published on Sep 18, 2012

Hank gives us the skinny on three plans NASA scientists have come up with to save Earth from an asteroid impact. Hopefully we'll never have to use any of them.

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References
http://neo.jpl.nasa.gov/1950da/
http://www.nasa.gov/pdf/171331main_NE...
http://www.nasa.gov/pdf/467238main_20...
http://impact.arc.nasa.gov/news_detai...

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