Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

Scientists have not yet found direct evidence of a moon outside our solar system -- but they just found a hint of a hellish ...

Our solar system contains the most volcanic object in the known universe: the Jupiter moon Io. Now, researchers from NASA's Jet Propulsion Laboratory (JPL) in Southern California suggest a similar ...

Searches in recent years have identified several promising candidates, and the cloud around WASP-49 b offers the latest strong prospect — a satellite that may resemble Io, the moon of Jupiter ...

Recent data from the James Webb Space Telescope (JWST) suggests that a planet orbiting a small, red star 35 light years away ...

Jupiter, now located in Taurus the Bull, appears in telescopes wreathed by its four largest moons: Io, Europa, Ganymede, and Callisto. At times, those moons pass in front of or behind the planet ...

By analyzing the movements of a mysterious cloud of sodium moving around the planet WASP-49 b, the team was able to construct a compelling argument for the presence of an exomoon. While many ...

On Oct. 14, 2024, NASA launched a robotic spacecraft named Europa Clipper to Jupiter’s moons. Clipper will reach the ...

It's four largest moons are Ganymede, Callisto, Io and Europa. They are known as Galilean moons, named after Italian ...

NASA scientists believe they have found indirect evidence of a moon orbiting an exoplanet with similarities to Jupiter's moon Io, pictured here. Credit: NASA / JPL-Caltech / SwRI / MSSS Scientists ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems. When you purchase through links on our site, we may earn an ...

Three of Jupiter’s moons – Europa, Ganymede and Callisto – are home to large, underground oceans of liquid water that could support life. This composite image shows, from top to bottom ...