Jupiter, a gigantic gas planet raging with constant storms. This is a very dangerous planet that has never been successfully entered, but that hasn't stopped mankind from settling on its moons. There are only domes on Jupiter's four biggest moons; Io, Europe, Ganymede, and Callisto. All of the others are still being explored for possible usage. All of the main moons of this planet are very large and are hot with lava oozing out of their cores. This makes the cities quite warm and summery.