JUICE is scheduled to perform 35 flybys of the Jovian moon, but the mission will end with the spacecraft settling into a circular orbit around Ganymede, where it will operate for about six months and come within about 311 miles (500 km) of its surface. By doing so, “Juice will be the first spacecraft to orbit a moon in the outer solar system,” ESA said Claims. The space agency chose a good target, as Ganymede, the largest moon in the solar system, is the only known moon to exhibit its own magnetic field, which causes it to interact with the Jovian environment in unique ways.