Scientists find leg of dinosaur that was killed by the great asteroid
A dig site at Tanis has proven to be a landmine of archaeological evidence about the day the asteroid hit Earth.
Image courtesy of NASA shows an artist's concept of a broken-up asteroid. Scientists think that a giant asteroid, which broke up long ago in the main asteroid belt between Mars and Jupiter, eventually made its way to Earth and led to the extinction of the dinosaurs.(photo credit: NASA/JPL-CALTECH/HANDOUT VIA REUTERS)Updated: 
