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

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

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

Recent fossil discoveries in New Mexico have provided compelling evidence that dinosaurs were thriving just before the ...

Scientists investigating the asteroid that wiped out dinosaurs after slamming into the Earth 66 million years ago have released a new study suggesting that it formed "beyond the orbit of Jupiter." The ...

Computer simulations have revealed that a vast region of the Yucatan Peninsula, Mexico, may have behaved like a fluid during the formation of the Chicxulub impact crater. Gareth Collins, a ...

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

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Sixty-six million ...

For decades, scientists have accumulated ever-larger datasets that suggest an enormous space rock crashed into the ocean off the Yucatan Peninsula more than 65 million years ago, resulting in the ...

The Chicxulub impact structure in Mexico is widely believed to be the site of the asteroid impact that allegedly killed the dinosaurs. As Sergio de Régules reports, scientists are now preparing to ...

NSF: For decades, scientists have accumulated ever-larger datasets that suggest an enormous space rock crashed into the ocean off the Yucatan Peninsula more than 65 million years ago, resulting in the ...