In prehistoric times, the Earth was shaped by floods, mega-tsunamis and meteor strikes. Scientists find out why.
Returning Series
Earth Shocks
November 13, 2007
January 8, 2008
1
9
English
Steadfast Television
National Geographic
65 million years ago an asteroid hit the Earth and wiped out the dinosaurs, but no one has ever known where the asteroid came from and how it killed off nearly three quarters of all life on Earth...