YR4 has a roughly 2 percent chance of hitting Earth in 2032, and “is large enough to cause localized damage,” NASA says.

A nearly 98 percent chance it won’t hit us is pretty good. Second, while that’s definitely a massive rock, it’s not like a ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

Even the smallest odds of an impact sound alarming, but scientists’ ability to calculate them is actually good news.

The asteroid warning network is affiliated with the United Nations. Officials activate the IAWN when an asteroid bigger than ...

A near-Earth asteroid as wide as the Statue of Liberty is tall could strike Earth on Dec.22, 2032, alerting planetary defense ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that ...

A colossal impact billions of years ago carved out the canyons that rival the most breathtaking features here on Earth in a ...