National Geographic – Cosmic Fireballs
Filed under: Documentary

Four billion years ago, an asteroid collided with Earth, knocking it off its axis and creating our four seasons. Scientists believe that it also transported life to our planet.

This documentary looks at the power released by asteroids, how bacteria can survive an impact and the possibility that an asteroid could be well overdue to hit earth.

http://rapidshare.com/files/49879712/Imax_-_Cosmic_Fireballs__National_Geographics_Space_Documentary_.part1.rar

http://rapidshare.com/files/49881382/Imax_-_Cosmic_Fireballs__National_Geographics_Space_Documentary_.part2.rar

http://rapidshare.com/files/49883102/Imax_-_Cosmic_Fireballs__National_Geographics_Space_Documentary_.part3.rar

http://rapidshare.com/files/49883501/Imax_-_Cosmic_Fireballs__National_Geographics_Space_Documentary_.part4.rar