TED Talk: How to Defend Earth Against Asteroids

Posted on November 30, 2011

In this recent¬†TED Talk, Phil Plait outlines steps to prevent giant asteroids from demolishing the planet. ¬†This solution doesn’t involve photon cannons, but does use ion thrusters.

He mentions the B612 Foundation, which is an organization of other bona-fide scientists dedicated to this end.