Ganymede is one of the four largest moons of Jupiter in the Sol System. Up until the year 2652, Ganymede was a terraformed colony world of the Stellar Consortium. The nourishing sunlight needed to achieve this feat was provided by a series of solar collectors that intensified and directed sunlight onto the moon. Due to its relatively small size compared to standard planets, restrictions were placed on immigration, and those who were allowed to settle and live on the moon were carefully screened. Visitors were closely monitored to prevent unauthorized immigration. This was necessary as Ganymede was seen as a very desirable world on which to settle, with a peaceful lifestyle and utopian surroundings.