According to our sister site Livescience, this week's big space rock flybys start with the asteroid 2012 DK31, which measures about 450 feet (137 meters) across — wider than a 40-story ...

Earth is perfectly safe from a menacing asteroid known as 2024 YR4 that is big enough to level a city, but the moon? Not so ...

So for now, it looks like we are still in the clear from getting destroyed by an asteroid — at least that we are aware of — until that whole big, asteroid potentially slamming into Earth on ...

It's actually good news that NASA spotted a sizable asteroid with a (small) chance of hitting Earth in 2032. It means our ...

An enormous asteroid—big enough to leave a six-mile-wide crater and darken the world with dust if it hit Earth—will harmlessly zip by our planet on April 29. The object, called 1998 OR2 ...

Over the next several weeks, astronomers will be looking closely at an asteroid that could be as big as a football field as they try to determine just how likely it is to strike Earth in 2032.

A massive space rock will go hurtling past Earth in a few years, zooming by 10 times faster than a bullet. This is the first time an asteroid of its size is coming close enough that people in ...

NASA estimates the asteroid's orbital path as bringing it just over 295,000 kilometers away from the Earth. This is far closer than normal, especially for such a big asteroid. For comparison ...

Planet Earth and big asteroid in the space. A 290-foot asteroid is expected to pass by Earth Saturday, coming within 3.1 million miles of the planet—about 13 times further than the moon ...

The risk assessment has fluctuated since the asteroid’s discovery late last year, when it was rated at a 1.2% probability of hitting our planet. The impact probability is expected to keep ...

Mark Burchell, professor of space science at the University of Kent in the U.K., told Newsweek there are multiple answers to how big an asteroid would need to be to destroy Earth. On the one hand ...