Text Size: Small Medium Large

NOVA - Asteroid: Doomsday or Payday?

Asteroid: Doomsday or Payday? Asteroid: Doomsday or Payday?
Will future asteroids trigger massive extinctions?or be mined for precious minerals?
http://video.pbs.org/widget/partnerplayer/2365124688/?player=WGBY-PBS&w=512&h=288&chapterbar=true&autoplay=false Will future asteroids trigger massive extinctions?or be mined for precious minerals? /episodes/get/10953 /episode/10953 NOVA: Asteroid: Doomsday or Payday? /episode-player/10953
10953