The asteroid, designated 2024 YR4, jumped to the top of NASA's risk chart, with a slim but measurable chance of striking Earth in just seven years.

A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more ...

A small asteroid, referred to as Earth's temporary "mini-moon," could actually be a piece of the Moon that broke away ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

"There is little question that, with its daylight display and spectacular evening apparition in a moonless sky, Comet 2024 G3 ...

The Einstein Probe is revolutionizing our view of the distant X-ray universe, offering an unprecedented look at some of the ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

Follow-up observations from the Gemini-North telescope on Hawaii Island and the Very Large Telescope in Chile returned ...

For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

The asteroid is about 33 feet (10 meters) across and poses no danger to Earth. It joins another known lunar asteroid ...

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13 as it reached its perihelion, and is now disintegrating.

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.