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

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

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 ...

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

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

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

By staring into the hellish landscape of Jupiter's moon Io—the most volcanically active location in the solar system—Cornell ...

China's Chang'e 4 rover Yutu 2 has been working on the far side of the moon for nearly six years. It was designed to operate ...

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

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