The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Earth’s atmosphere is slowly leaking into space, and new research shows some of it reaches the Moon, where it may be ...

A new NASA study using Apollo lunar soil samples challenges a long-held theory. It suggests meteorites were not the primary ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction in ...

Scientists say Earth’s magnetic field may have funneled atmospheric particles to the moon for billions of years. Lunar soil could preserve a record of Earth’s past while providing resources for future ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

The findings are a big clue as to why the far and near hemispheres of the moon look so different.

The U.S. is the only country to have ever sent humans to the moon.

We now have direct images of two supermassive black holes: M87* and Sag A*. The fact that we can capture such images is ...

What’s different about this 10-day test flight is not only that it returns astronauts to the vicinity of the moon for the ...