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 ...

For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This ...

When a full moon peeks just above the horizon, it appears enormous. This is a curious phenomenon, as when it is at this ...

The Moon is a pretty peculiar object. It is believed that it formed from the incredible collision between the proto-Earth and ...

The craters bear the names of astronomers who revolutionized our understanding of the night sky.

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

Once believed to be a dead and silent world, the Moon is now revealing deep, massive fractures stretching hundreds of ...

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

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 ...