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 once-dubbed "city-killer" asteroid 2024 YR4 has surprised scientists with its 'unusual' shape as it rapidly rotates through space on a trajectory that could see it hit the moon.

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 ...

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.

Add Yahoo as a preferred source to see more of our stories on Google. Asteroid 2024 YR4 is big and dangerous enough that it has been dubbed a "city killer." There were concerns that the asteroid could ...