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

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

The asteroid is expected to make a “horseshoe path” around Earth over the next two months. For the next two months, an ...

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

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

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

NASA's Europa Clipper probe will lift off and embark on a long-awaited mission to study Jupiter's icy moon Europa, which ...

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

The September Harvest Moon, a partial lunar eclipse, will make its debut in the sky Monday evening and last through Thursday ...

It's called a Harvest Moon because it traditionally provided farmers with more time to pick their crops. Here's what else to ...

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

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 ...