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

About 66 million years ago, an asteroid slammed into what is now Mexico, forming the Chicxulub crater. This impact wiped out ...

Asteroid 2025 SC79 is the size of a skyscraper and moves around the solar system at a record-breaking speed. Astronomers ...

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

Of all the mysteries surrounding dinosaurs, none has sparked more debate than how their era ended—was it a gradual decline or ...

A massive crater hidden beneath the Atlantic seafloor has been confirmed as the result of an asteroid strike from 66 million ...

A geology professor who joined the New Mexico State University faculty this year is the lead author of a new paper addressing ...

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

The Cretaceous-Paleogene mass extinction, occurring approximately 66 million years ago, represents one of the most dramatic biotic crises in Earth’s history. It is marked by the abrupt disappearance ...

Carnegie Science astronomer Scott S. Sheppard discovered the asteroid on September 27 with the Dark Energy Camera on the National Science Foundation's Blanco 4-meter telescope. That telescope searches ...

Creatures that had ruled the planet for more than 170 million years — from the gigantic sauropods that shook the ground to the fearsome tyrannosaurs — disappeared forever. However, this is not a story ...

A large asteroid (~12 km in diameter) hit Earth 66 million years ago, likely causing the end-Cretaceous mass extinction. Credit: Southwest Research Institute/Don Davis A large asteroid (~12 km in ...