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 ...

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.

The moon will officially be spared from an explosive encounter with a "city-killer" asteroid in 2032, new observations from the James Webb Space Telescope (JWST) reveal. Collected on Feb. 18 and Feb.

Asteroid 2024 YR4 is big and dangerous enough that it has been dubbed a "city killer." There were concerns that the asteroid could hit the moon or even Earth in 2032. However, in a major update, NASA ...

Everyone knows that a big rock wiped out the dinosaurs. But the danger from an asteroid hitting Earth is not limited to ancient history. To deal with this threat, scientists recently ran an experiment ...

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 ...

The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

New observations from the James Webb Space Telescope provided a better understanding of the asteroid's orbit. The 300-foot-long asteroid was previously considered a threat to both Earth and the moon.