The Earth's Moon is its only one, but scientists recently discovered a new celestial body that will be staying near the ...

A major asteroid has entered Earth's orbit, and some scientists and experts believe it is exhibiting behavior consistent with ...

Earth has only one true natural satellite, our 2,159-mile-wide moon which orbits about 239,000 miles away from our planet. However, experts only recently discovered a new quasi-moon; a small body that ...

The universe has quasi-moons, mini-moons, and moonlets, but no official definition of what counts as a moon.

Those social media and other reports that the Earth now has two moons appear to be off the mark by about a moon. Astronomers assure that we still have only one, true lunar satellite and that the ...