Sardos was a large fixed meteoroid located near the edge of the Outer Darkness, not far from Kalkos. Its presence was concealed by two energy fields surrounding the meteoroid, the inner impervious, the outer refractive to medium pulse energy (gamma radiation to radio waves). The latter required altering the frequency on which the Liberator teleport operated to omicron wavelengths. Light was provided by the energy/mass transformation technology developed there.
The population consisted of 300 Sardoans, who avoided all genetic change and had projected the progress of their evolution two million years forward in time.
Made of a central city that included a tracking station. Reference was made to a desert region on the surface.
After the Intergalactic War , a Federation T-16 transporter with the survivors of the 5th Legion, arrived on Sardos and took control. After arriving, Colonel Astrid ran the Sardoan computer projection through the energy/mass transformer to create a specimen of the creature into which the Sardoans would eventually evolve. His name was Moloch, and he effectively ruled the population. Astrid was later imprisoned by Moloch, and his second-in-command had "an accident", leaving Grose in command. Grose lured Servalan to Sardos, intending to use her cruiser as a model for a fleet of ships crewed by prisoners from Kalkos.
The only Sardoans mentioned by name were Poola and Chesil, who were used to track incoming traffic. (TV: Moloch)