Satellites and rocket stages burning up on reentry are now depositing more aluminum into Earth’s upper atmosphere than natural meteoroids, crossing a threshold that atmospheric scientists have warned ...

Bright streaks on a small asteroid moon looked, at first, like a camera problem. They were faint, fan-shaped, and easy to ...

A new study has found that an asteroid NASA used for target practice a few years ago was nudged into a slightly different ...

NASA has concluded that asteroid 2024 YR4, the space rock that briefly alarmed planetary scientists after its discovery in ...

An asteroid, previously used by NASA for a planetary defence test, has been successfully shifted onto a slightly altered path around the sun, scientists reported on Friday. This landmark achievement ...

It's the first time a celestial body's orbit around the sun was deliberately changed. The asteroid that NASA's Dart ...