An image captured by the Asteroid Terrestrial-impact Last Alert ... as the surprise 56-foot (17-meter) rock that exploded over Russia and blew out people's windows in 2013 proved.

Asteroid 2024 YR4 has been a source of consternation because it carries an uncommonly high risk of colliding into Earth. It's the most hazardous space rock detected since astronomers first ...

The asteroid is estimated to be 131 to 295 feet (40 and 90 meters) wide. The space rock has a “size range comparable to that of a large building,” said Dr. Paul Chodas, manager for the Center ...

Named 2024 YR4, the asteroid has a 1.2% chance of hitting our planet on December 22, 2032, the European Space Agency and NASA have found. But that also means the space rock has a nearly 99% chance ...

asteroid 2024 YR4 in data from the Catalina Sky Survey, meaning he was able to find images of the space rock in archival data that was gathered prior to its official discovery. Space.com reached ...

Further observations ruled out an impact. The most infamous asteroid impact occurred 66 million years ago, when a six-mile-wide space rock triggered a global winter, wiping out the dinosaurs and ...

A recently spotted space rock has suddenly climbed atop astronomers’ threat lists. NASA’s Center for Near Earth Object Studies calculates that the nearly 300-foot-wide asteroid 2024 YR now has ...

An asteroid measuring as wide as 295 feet is possibly headed right toward Earth, but don’t run for cover just yet. A NASA-funded telescope in Rio Hurtado, Chile, first spotted the asteroid ...

A telescope in Chile, part of a NASA-funded program to search for near-Earth objects, spied the asteroid two days after the rock, on Christmas, made its closest approach to Earth. It was roughly ...

It appears to be composed of rock broken off from the moon's surface and ejected into space after a large impact. "We had a general idea that this asteroid may have come from the moon, but the ...

Any chance of more than one per cent that a rock more than 50-metres wide might hit the planet prompts a global network of experts to discuss the risk. The Christmas asteroid, known formally as ...