The four largest moons of Jupiter are called the Galilean satellites, because they were discovered by Galileo when he first observed Jupiter with a telescope. Their names are:
* Io * Europa * Callisto * Ganymede
Europa, Ganymede, Io, and Callisto. All four are larger than Earth's Moon.
Jupiter is a big gas giant and has rings with ice in them
Uranus has at least 27 moons that we know of.
The biggest moon is "Ganymede" which is a moon of Jupiter.
Moons are big rocks in space so they are not created all the same way.
Small
we can't use jupiters moons for anything because fistly we can not get out that far to reach Jupiters moon and if we could it would take thousands of years and Jupiters Moons would be to big to do anything with anyway. so the answer to What could Jupiter's moons be used for? is....Nothing.
The four large moons on Jupiter, or Galilean moons for the astronomer who discovered them, are called Io, Europa, Ganymede, and Callisto.
They're fairly big for moons, although Jupiter itself is big. The four "Galilean" moons of Jupiter were the first "moons" other than our own Moon to be seen, by Galileo using his new telescope.
gass
Because there is a really big storm on it
Venus has no moons.
Jupiter is a big gas giant and has rings with ice in them
there are 63 moons and 4 of them are big
no moons but have big craters
their radii are (in km): Io - 1815 Europa - 1569 Ganymede - 2634.1 Callisto - 2410.3
The Big Red SpotA continuous storm
It's one of Jupiter's four big moons discovered by Galileo: Io, Europa, Ganymede and Callisto.