But a new NASA study may have found a clue that one is orbiting a planet some 635 light-years from Earth. The inference comes ...

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

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

Florida residents can expect to see their third “supermoon” of the year overhead. And it’s also set to be the biggest.

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 ...

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 ...

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

Former President Donald Trump’s campaign still owes St. Cloud nearly $209,000 for services related to a July rally, officials ...

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

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.