This gas giant has some really unique features that make it stand out. If you’re curious about space, learning a few things ...

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

On the fiery Io, the innermost and third-largest of Jupiter’s four Galilean moons, Juno's observations have provided more insights about its incessant volcanic activity.

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems.

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems.

Europa Clipper launched today (Oct. 14) atop a SpaceX Falcon Heavy rocket from Florida, kicking off a highly anticipated astrobiology mission to the Jupiter ocean moon Europa.

Jupiter's moon Ganymede was hit by an asteroid about 4 billion years ago that was so large the moon's axis shifted as a result, study finds.

Typically you can see two or three moons depending on their positions and the change in position can easily be observed over a few hours. Tonight all four moons are on the same side of Jupiter.

Io is most volcanically active. This animation is an artist’s concept of Loki Patera, a lava lake on Jupiter’s moon Io, made using data from the JunoCam imager aboard NASA’s Juno spacecraft.

NASA's Juno mission passed within 930 miles of Jupiter's volcanic third largest moon lo Saturday, capturing stunning images of the most volcanic world in our solar system.

The spacecraft came to within 930 miles of Io's surface—the closest any spacecraft has flown by the Jovian moon in over 20 years.