From time to time, the Star Gods show up on Earth to keep the tabs on current goings-on and ensure no one is breaking their rules. Their ways are always mysterious, as their vessels do not make landings during this mission; either they have means of supervising without direct contact (after all, they have many spies), or they're simply not that much interested in this backwater planet. The Supervisions are flown by Messengers, Envoys and Cruisers.