Scientists have identified a rare CO chondrite meteorite as the impactor that caused dinosaur extinction. This space rock, ...

Researchers identified the Chicxulub impactor as an exceptionally rare type of asteroid that wouldn't have triggered a mass ...

Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This cleared the stage for dinosaurs to take over for the next 135 ...

The asteroid, whose collision with Earth about 66 million years ago led to a mass extinction, could belong to an ...

The Cretaceous Era—roughly 145 to 66 million years ago—was the last hurrah of the dinosaurs. A massive asteroid impact brought them to a violent end, but there’s more to the story. The Cretaceous ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study reveals dinosaurs in New Mexico were thriving just before the asteroid impact that ended their reign, overturning long ...

Silhouette of the Tyrannosaurus called Stan. This "tyrant lizard king," was excavated and prepared by the Black Hills Institute. © Louie Psihoyos/CORBIS What ...

When the big asteroid hit Mexico 66 million years ago, it set off wildfires, tsunamis and massive clouds of dust that darkened the skies, killed much of Earth’s plant life and triggered a chain of ...

Long before dinosaurs ruled the continents and modern crocodiles first appeared, their ancestors were already going through a ...

Dinosaurs ruled the Earth for over 150 million years. Compared to the mere 4–6 million years that scientists believe humans and their earliest ancestors have been on the planet, it wouldn't be ...