Researchers believe the “quasi-satellite” has accompanied Earth since 1957.

Look to the west-southwest after dark on Thursday, Jan. 22, to see a 17%-lit waxing crescent moon moving close to the ringed ...

Here's how to see the celestial pairing.

For months, Saturn has been a steady presence in the sky after sunset, but after tonight, it will move away from our view for ...

The Moon is coming back to us.

A rare total lunar eclipse on Mar. 3 will bring a 58-minute “blood moon” to North America. It’s the only total lunar eclipse ...

Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...