The asteroid was discovered in August and is set to become a mini-moon, spinning around Earth in a horseshoe shape for about ...

Detectors inside Artemis I’s Orion capsule show how much radiation exposure its mannequins underwent and how effective a ...

Asteroid will come close enough to Earth to temporarily enter its orbit at the end of the month, a phenomenon dubbed as "mini ...

Multiple bullets containing a tiny spectrometer could be shot into the lunar soil by an astronaut or rover, allowing analysis ...

This new floating rock is only expected to orbit the Earth once, beginning its trip Sept. 29 before breaking off from its ...

It won't be there forever, but Earth will have a second moon when a small asteroid begins to orbit the planet later this ...

Though the mini-moon will only be in Earth’s orbit for about two months, it’ll stay close to the planet for a few months, ...

An asteroid, pulled into Earth’s orbit, is sometimes known as a ‘mini-moon.’ You’ll need a telescope to view it.

See 10 of the week’s most interesting images from around the world, as selected by Washington Post photo editors.

For nearly two months this year, Earth’s moon will have company — a second moon. Technically, it isn’t a second moon, but ...

Discover the surprising list of celebrities who claim ownership of land on the moon, including stars like Tom Cruise.