Saturn, the one-time leader, comes in a close second with 83 confirmed moons. The Jupiter moons were added recently to a list kept by the International Astronomical Union’s Minor Planet Center, ...

More than seven years after it began studying Jupiter, NASA’s Juno mission has been making close passes of some the gas giant’s moons. The latest is Io, the most volcanic world in the solar ...

The volcanic world of Jupiter's moon Io can be seen in extraordinary detail in new images beamed from NASA’s Juno orbiter after its most recent flyby.. The encounter was Juno's second with Io ...

Jupiter sets record after 12 new moons discovered 00:14. A NASA spacecraft made its closest-ever approach to Jupiter's moon Io, coming within 930 miles of the "surface of the most volcanic world ...

The second of a pair of close flybys adds to the treasure trove of data that scientists have about Jupiter’s volcanic moon. On Saturday, NASA’s Juno spacecraft made a second close flyby of ...

That mission, which is slated to end in September 2025, also extends to Jupiter's rings and many moons. Juno’s trajectory passes by Io every other orbit, flying over the same part of the moon ...

The two-day-old moon meets up with Jupiter tonight (Feb. 22), making a close approach and sharing the same right ascension in an arrangement known as a conjunction.

The Jupiter Icy Moons Explorer mission (JUICE) was launched into space last year by the European Space Agency (ESA). On August 19th the probe will use the Moon’s gravity to change direction.

Each second of the movie represents 30 minutes of the event. (Christopher Go/Kunio Sayanagi) ... In a rare occurrence, three of Jupiter's largest moons passed in front of the planet simultaneously.

And over the summer, researchers collecting radio waves from Ganymede made a surprising find — their recording of Jupiter's largest moon, when adapted to human ears, sounds like R2-D2.