This fascinating TEDTalks video shares interesting history and facts about asteroids that have crashed to Earth in the past, asteroids currently in the ‘solar neighborhood’, and ways that we could defend our planet from them.
From YouTube: 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.
- Published 12/27/11