3 Ways to Save Earth from an Asteroid

ORIGINAL: SciShow

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.

Like SciShow: http://www.facebook.com/scishow

Follow SciShow: http://www.twitter.com/scishow

References

http://neo.jpl.nasa.gov/1950da/

http://www.nasa.gov/pdf/171331main_NEO_report_march07.pdf

http://www.nasa.gov/pdf/467238main_20100415_NEOObservationsProgram_Johnson.pdf

http://impact.arc.nasa.gov/news_detail.cfm?ID=136