Photographs from the first days of the Chernobyl disaster and of the aftermath years later show the response, the evacuation ...

COLORADO SPRINGS–Thirteen years ago a 20-m asteroid streaked without warning into Earth’s atmosphere before exploding over the Russian city of Chelyabinsk, injuring 1,500 people and causing widespread ...

After several tests of unusual “nesting doll” satellites in low-Earth orbit, Russia is now fielding operational ...

NASA astronaut Jessica Meir captured a stunning photo of the Lyrids meteor shower from the International Space Station.

Could we deflect an asteroid to stop it from hitting our planet?

Scientists estimate there are thousands of asteroids large enough to destroy a city near Earth. NASA is sending a telescope into space to find them.

Aarti Holla-Maini of the UN’s Office for Outer Space Affairs is primed to spot a potential planetary strike – and a year ago, she thought the moment had come ...

Everyone was talking about it this weekend, a large meteor exploding over the Houston area and sending pieces of space rock toward the ground. It happened Saturday, March 21, at 4:39 p.m. Central Time ...

On February 15, 2013, a small asteroid exploded over the city of Chelyabinsk, Russia. [‘On This Day in Space’ Video Series on Space.com] The shock wave from this explosion damaged thousands of ...

Due to the lapse in federal government funding, NASA is not updating this website. We're working continuously to improve our search results. If you aren't finding what you expect, please use our ...

A small asteroid careened toward Earth before burning up Tuesday night above northern Siberia in Russia, creating a blazing fireball in the sky witnessed across the region. The space rock, which was ...

A small asteroid barreled toward Earth, creating a harmless fireball across the skies above eastern Russia on Tuesday, officials said. The asteroid, described as "very small" by NASA, impacted Earth's ...