But new research has revealed that there were at least two dinosaur-killing asteroids. The impact crater of the second one ...

A clear picture is emerging of why the asteroid that struck Earth 66 million years ago was so catastrophic. The space object, which wiped out 75% of all species including the dinosaurs ...

A six-mile-long asteroid, which struck Earth 66 million years ago, wiped out the dinosaurs and more than half of all life on Earth. The impact left a 124-mile-wide crater underneath the Gulf of ...

Did a collision with a giant asteroid or comet change ... now you don't" end to the dinosaurs implies a catastrophic cause. Depending on location and interpretation, the fossil record seems ...