Quite interesting:
http://www.extremetech.com/extreme/14797...-dinosaurs
http://www.extremetech.com/extreme/14797...-dinosaurs
article Wrote:A team of American and European researchers have confirmed that the Cretaceous-Paleogene extinction — the event that wiped out roughly 75% of the planet’s species, including almost every dinosaur — was caused by an asteroid impact in Mexico 66 million years ago.