Astronomers have yet to confirm the existence of exomoons, but a molecular signal around a far away star offers some of the ...

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

New research done at NASA's Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet ...

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

This week, marvel at giant tube worms living beneath hot springs on the ocean floor, watch SpaceX catch a rocket booster, ...

Our Solar System contains some exotic and fascinating moons – but if this one 635 light years away is real, it could take the ...

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

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 ...

This artist’s concept depicts a potential volcanic moon between the exoplanet WASP-49 b, left, and its parent star. New evidence indicating that a massive sodium cloud observed near WASP-49 b is ...

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

Here’s how it works. Scientists have found new evidence of a potentially volcanic moon orbiting a planet beyond our solar system. Our solar system contains the most volcanic object in the known ...