The idea that Earth has only one moon is considered to be true, but that isn't always the case. In fact, sometimes, it's had ...

For just a few months, Earth hosted a "second moon," much smaller than our faithful historical companion. This fleeting ...

Astronomers used the Two-meter Twin Telescope to catch a "see-you-soon" image of the departing asteroid 2024 PT5.

Earth's recent "mini-moon" asteroid 2024 PT5 didn't stick around for Thanksgiving, but don't be sad. It will be back... but ...