The menacing asteroid that wiped out non-avian dinosaurs left a colossal marine crater in what's now the Yucatan Peninsula.

An asteroid nearly a mile wide missed Earth last week ... UL21 passed Earth on 27 June at a distance of 4.1 million miles (6.6 million kilometers), or about 17 times the distance between the ...

"The really big ones, like the 10km (6.21 mile) [wide] or so asteroid that we think led to the extinction of the dinosaurs, happen maybe once every 100 million years." The asteroid 2024 YR4 ...

Once every 100 million years or so, an even larger asteroid may cause a mass extinction; most scientists believe a six-mile-wide asteroid doomed the dinosaurs 65 million years ago. Astronomers ...

volcanic activity or an asteroid. Now new research has revealed that the prehistoric animals died out around the same time a six-mile-long object struck the planet. The cosmic impact near the town ...

Today, an asteroid larger than ... to be between 10 and 15km wide.’ What are asteroids? And what is 887 Alinda? Asteroids, sometimes as small as six feet or as large as mountains, are craggy ...

The chances of a civilization-ending collision with a large asteroid or comet—like the six-mile-wide asteroid that apparently wiped out the dinosaurs 65 million years ago—within our lifetimes ...

"These relics are effectively fossils of the planet formation process, holding vital clues to deciphering the history of our solar system." The next stop for NASA's asteroid-hopping spacecraft ...

When an international team of scientists studied that map, they found a 16-mile-wide, bowl-like depression - it looked like a giant asteroid impact crater. The scientists wanted to be sure ...

Nasa says there is a small chance a recently spotted asteroid could collide with the Moon. Studying it can inform our understanding of the Earth's past and our future.