Earth has a group of cosmic stalkers. Known as "co-orbitals," these small bits of rock have a 1:1 mean motion resonance with Earth. Basically, they take the exact same amount of time to orbit the sun as we do.

An ancient impact may have scattered material from deep inside the moon toward NASA's planned Artemis landing sites near the lunar south pole.

An asteroid roughly the size of a small city may slam into the Moon in 2032, and if it does, the blast could hurl clouds of lunar rock into space and toward Earth. Scientists say the odds of a direct hit are low but not negligible, and they are racing to ...

Earth has long been deemed safe from a calamitous collision with a certain small asteroid in 2032. The moon, on the other hand, remained under threat for a little while longer. Finally, though, scientists have been able to conclusively rule out a lunar ...

Newly discovered asteroid 2026 JH2 will safely pass just 90,000 km above Earth on 18 May, offering astronomers a rare and dramatic close flyby.

Newly spotted asteroid 2026 JH2, which could be up to 115 feet wide, will fly past Earth closer than some satellites on Monday (May 18). The close approach will be visible to stargazers and can be viewed via livestream.

The space rock has a 4.3% chance of striking the Moon in six years—and it could generate a flash nearly as bright as Venus. Reading time 2 minutes A large rocky asteroid will make a close approach to Earth in 2032, with the tantalizing prospect of ...