Often overshadowed by Europa and Ganymede, Callisto is actually one of the largest moons in our solar system. In this video, ...

A camera built at Arizona State University is on its way to check for signs of life above Jupiter, but it detoured to Mars for testing.

The moon spent a few million years as a volcanic wasteland, covered with ongoing eruptions that spewed from mountains and ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

A flurry of new discoveries from NASA's Juno mission Jupiter have taken us beneath the surface of the gas giant's volcanic moon, Io, and into the world of cyclones playing bumper cars at the north ...

New data from the orbiter has unveiled some of the treacherous conditions of not only Jupiter, but its moon Io, the most volcanic body in the solar system. The findings, which come after Juno has ...