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

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 ...

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

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

According to a large team of technical and health specialists, astronauts aboard the Orion spacecraft will be well protected ...

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

Here’s what to know about our new, temporary celestial neighbor. Earth has a large gravitational pull. So it’s not uncommon ...

Compared to the iPhone 16 Pro Max, there's a lack of contrast with the night sky appearing to be dark gray. There's a greater ...

An Arjuna asteroid, discovered in August, will become a "mini-moon" event for nearly two months from Sept. 29 to Nov. 25.

Sadly, at just about 10 meters, the mini-moon will be extremely hard to see from Earth, but its presence will be there ...