Europa is closer
No, they are not. Europa and Ganymede are two of planet Jupiter's 63 moons!
Europa, Ganymede, and IO :)
Two of Jupiter's moons
Europa is one of Jupiter's moons. Actally theres Europa, Callisto, Ganymade, and Io. :] Ganymede, Io, Europa and Callisto Jupiter has 67 moons, of which four are major. Those moons are Io, Europa, Ganymede, and Callisto.
Satelites of Jupiter
Io, Europa, Ganymede and Callisto are the four satellites that orbit Jupiter.
Io, Ganymede, Callisto, and Europa stay in orbit with Jupiter cause Jupiter has a strong gravitational pull on celestial bodies around it.
Jupiter
It is Jupiter.
Io, Europa, Ganymede and Callisto.
They are all moons of Jupiter.
Ganymede, Callisto, Europa, Io