TED talk: Phil Plait: How to defend the Earth from asteroids

by nboydgibbins

TED talk: Phil Plait: How to defend the Earth from asteroids

This TED talk covers some fascinating facts on historic asteroids and discusses the potential dangers they could yet pose. More interesting still, Phil Plait goes on to describe some of the many creative solutions that have surfaced since the discussion began.

(http://www.ted.com/talks/phil_plait_how_to_defend_earth_from_asteroids.html)

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