Physics professor, Caroline Simpson, talks about asteroids, meteors and meteorites following the impact on Russia.
http://www.youtube.com/watch?v=HxSUIT8cItY&feature=player_embedded
Physics professor, Caroline Simpson, talks about asteroids, meteors and meteorites following the impact on Russia.
http://www.youtube.com/watch?v=HxSUIT8cItY&feature=player_embedded