Scientists just discovered something incredible about the dinosaur-killer asteroid

Determining why the dinosaurs went extinct has been debated for ages and studied for even longer. Now, the most acceptable extinction event hypothesis — that of an astroid impact that changed the Earth's climate — has a very interesting new wrinkle. As it turns out, it might not have been the size of the rock or the actual destruction it wrought that made the asteroid so utterly devastating, but simply the exact spot where it slammed into our planet.Studying rock samples from up to 1