Scientists have never actually seen a moon orbiting a planet other than the ones in this solar system. An exomoon, a ...

Stargazers in the U.S. will be dazzled this week as the closest—and largest—supermoon of the year graces the skies.

"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." ...

We’ve got a cosmic mystery on our hands. No one’s ever confirmed the existence of an ‘exomoon,’ which is a moon outside our ...

We can't see the exomoon, but based on a surprisingly large sodium cloud, NASA's Jet Propulsion Laboratory thinks it's there.

Moons ought to be scattered throughout the Milky Way galaxy in a glorious profusion. Here in the Solar System, moons ...

The existence of a moon located outside our solar system has never been confirmed but a new NASA-led study may provide ...

The Moon, Williams and Zugger say, has an orbit around Earth that isn't as neatly aligned with the equator as you might ...

Here's what Californians should know about catching this rare marvel as it zooms above the Golden State in October.

Known as the giant impact hypothesis, this theory suggests that the Moon emerged from a cloud of debris following the impact.

Maggie Aderin-Pocock tells us about the power of the James Webb Space Telescope and how she inspires disadvantaged students ...