The crystal blue waters of the Gulf of Mexico hide evidence left by an ancient killer.

It’s a “Crater of Doom” more than 100 miles across, left behind by the gigantic chunk of space rock that crash-landed here 66 million years ago. The impact was 2 million times more explosive than the most powerful man-made bomb ever detonated. It would have sparked earthquakes, triggered tsunamis, turned the Earth warm as a greenhouse and then cold as an icebox. The cataclysm is thought to be responsible for the deaths of some 75 percent of all Earth’s species, including all the non-avian dinosaurs.

After weeks of drilling into this prehistoric crime scene, scientists have finally uncovered the rocks that saw it happen.

Read full article here.