How and when did dinosaurs first emerge and spread across the planet more than 200 million years ago? That question has for ...

A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how ...

“The fate of the dinosaurs and many other species was sealed ... larger than 90% of space rocks—safely passes our planet. It will pass just 19,635 miles (31,600 kilometers) from Earth ...

The idea that Saturn's rings are young seemed very strange in the context of the solar system's long evolutionary history." ...

But how dinosaurs went from a small and unimportant group of reptiles to ruling our planet for millions of years is a bit of a mystery. The Jurassic is a geological period that began 201.4 million ...

According to scientists who maintain that dinosaur extinction came quickly ... common in asteroids and in molten rock deep within the planet. Scientists have discovered levels of iridium 30 ...

cooling the planet by 5C. But its effects, minor compared with the asteroid hit, had worn off within 10,000 years — and had little or no effect on the extinction of the dinosaurs, the ...

That's the titanosaur, one of the largest land animals to ever exist, dwarfing nearly everything around it. Roaming the planet during the Late Cretaceous period — approximately 100 million years ago — ...

Hundreds of footprints from two dino species were excavated at a quarry in southeast England at the site of a well-known ...

Explore how dinosaurs octopus intelligence, adaptability, and evolution position them as potential creators of the next ...

By about 200 million years ago, however, dinosaurs had essentially taken over the planet, while most other reptiles disappeared during the end-Triassic extinction at around that time. What led to ...