At the moon's north and south poles, permanently shadowed craters remain so cold that water ice and other frozen compounds can persist for billions of years. Scientists think these ancient deposits ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the early Solar System.

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 ...

For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This coincided with the Late Heavy Bombardment (ca. 4.1 to 3.8 billion years ago), a ...

A new study suggests lunar soil contains elements that solar wind transported to the moon from Earth’s atmosphere, solving a ...

Earlier research held that meteorite impacts from the solar system's early days were a major source of Earth's water.

The Moon is working its way through the lunar cycle.

A long-standing idea in planetary science is that water-rich meteorites arriving late in Earth’s history could have delivered ...

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.

There’s a new moon rising in the sign of pay dirt, boot straps, the hard road and the finer things When is the new moon? The ...