CHICAGO -- A NASA spacecraft has intentionally slammed into an asteroid in humanity's first test of planetary defense. The impact occurred at 7:15 p.m. ET greeted by cheers from the mission team in ...

An asteroid estimated to be a kilometer (3,451 feet) wide will fly by Earth on January 18. The video in the media player above is from a related report. It will pass within 1.2 million miles of our ...

All of us have a responsibility to protect our home planet. After all, it’s the only one we have, NASA Administrator Bill Nelson commented following the DART mission’s success in deflecting an ...

The asteroid Dimorphos, left, is shown with its larger companion Didymos in space as it blasts dust and boulders in a lopsided debris cone following the NASA DART mission on Sept. 26, 2022. Credit: ...

An asteroid that could level a city now has a 3.1% chance of striking the Earth in 2032, according to NASA data released on ...