The Galilean moons are the four largest moons orbiting the planet Jupiter; they are named for their discoverer, Galileo.
They are (in order from closet to furthest from Jupiter) Io, Europa, Ganymede and Callisto; with just about any telescope, you can see at least a few of them for yourself whenever Jupiter is visible in the nighttime sky.
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.
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.
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.
Galilean
Callisto is a moon, and moons do not have moons of their own. The gravitational influence of the planet would overwhelm any tendency of a moon to acquire its own moons.