Dinosaurs Went Extinct Almost Immediately After Mexican Asteroid Strike

Scientists using a new and highly precise dating technique have concluded that the late Cretaceous asteroid strike in Mexico's Yucatan Peninsula coincided almost exactly with the extinction of the dinosaurs — give-or-take a few tens of thousands of years. While it's clear that other factors were contributing to the… » 2/08/13 8:00am 2/08/13 8:00am