Gravity keeps them in orbit around Jupiter.
Because they were discovered first by Galileo.
The Galilean moons orbit Jupiter.
The Galilean moons were discovered by Galileo Galilei in 1610.
No. It is a moon of Mars. The Galilean moons are moons of Jupiter.
No. There are four Galilean moons: Io, Europa, Ganymede, and Callisto.
They were discovered by Galileo.
Callisto is composed of rock and ice and is the least dense of the Galilean moons.
The Galilean moons are the four largest moons of Jupiter, so called because they were discovered by Galileo Galilei.
Io's heat is generated by tidal forces produced by the gravity of Jupiter and the other three Galilean moons.
The smallest of the Galilean moons is Amalthea, which is one of Jupiter's moons. It is irregularly shaped and has a reddish color due to its surface composition.
Galilean
The Galilean moons are Io, Europa, Ganymede, and Callisto, all of which orbit Jupiter. The term "Galilean" does not denote anything special about the moons other than that they were discovered by the astronomer Galileo Galilei.