Around 66 million years ago, the reign of the dinosaurs came to a fiery end. An asteroid about 7 miles (12 kilometers) wide, ...

New dating techniques of a century-old fossil site in New Mexico dispel the theory that dinosaurs were already in decline ...

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the ...

New evidence has emerged that dinosaurs in North America were thriving, and not in decline, before the asteroid hit.

Dinosaurs weren’t dying out before the asteroid hit—they were thriving in vibrant, diverse habitats across North America.

New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

Researchers from the Center for Astrophysics theorize that a comet, not an asteroid, is to blame for killing off the dinosaurs on Earth. In a press release, researchers said the Chicxulub impactor ...

New dating has revealed that New Mexico's last dinosaurs were healthy, diverse and thriving at the end of the Cretaceous ...

New dating of New Mexico rocks suggest diverse dinosaurs thrived there just before the impact, countering the idea dinos were already on their way out.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The dinosaur-killing asteroid that struck Earth around 66 million years ago was huge — around 7 ...