[Beck]

Another use for moons is to quickly train your ships and/or fleets. Choose a planet with 1 or moons and build a ship or fleeting training facility on each. The training stacks for any ships/fleets in orbit. Have a ship training III on each of the two moons and the planet and you receive 9% a turn (the max, don't recall seeing any planets with three moons), cuts down on the time to max out a ship/fleet's training.