Jupiter’s four largest and most well-studied moons were first discovered more than 400 years ago. And they still make for wonderful observational targets.

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

The first astronomer to discover moons around Jupiter was Galileo, back in the year 1610, but astronomers are still finding more and more moons around this gas giant.

Jupiter's Galilean moons are also visible this evening, but spotting them may be challenging with the planet so low. If you want to try, note that your location - which will affect the time you're ...

For the Galilean moons, which presumably formed around the same time as Jupiter itself, the planet would have blazed like a star in the sky and overpowered the light emanating from the farther-off ...

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.

It has 95 known moons and its four largest–Io, Europa, Ganymede, and Callisto–are called the Galilean moons. Io is most volcanically active.

Most of us know four moons of Jupiter, called the Galilean moons because they were first discovered by Galileo in 1610. Named for figures closely associated with Jupiter from Greek mythology, Io ...

Jupiter's four Galilean moons were discovered by Italian astronomer Galileo Galilei in 1610. NASA's Juno spacecraft launched from Earth in 2011 and entered Jupiter's orbit in 2016.

A team of astronomers observing Jupiter's Galilean moons have found that four of these intriguing worlds also boast brilliant auroral light shows. Discovered by Galileo in the early 1600s, the ...

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

But the question of how many natural satellites the planet truly has is a bit more complicated. Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610.