Sixty-six million years ago, a single asteroid hit Earth in the Yucatán Peninsula and killed off the dinosaurs. The disaster ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the details of their end have remained a matter of debate since the impact crater ...

The dinosaurs' extinction was spurred by an asteroid that struck Earth. By studying the crater, scientists now know what happened after the impact.

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

Two T. rex dinosaurs square up for a fight in an illustration. Dinosaurs in the Cretaceous were thriving until the Chicxulub asteroid initiated a mass extinction. Mark Garlick / Science Photo Library ...

When the asteroid hit Earth 66 million years ago, it wiped out the dinosaurs - but crocodiles survived. Why did one group vanish while the other thrived?

Roland, 4, was attacked by two dogs on Nov. 20. 12 minutes ago ‘Our lives changed in an instant’: Family asks for help after 4-year-old boy loses his ear in Jacksonville dog attack Read full article: ...