High Quality Content by WIKIPEDIA articles! Deep Space Nine (DS9; also known as Terok Nor) is a fictitious space station, and is the eponymous primary setting of the science fiction television series Star Trek: Deep Space Nine. It serves as a base for the exploration of the Gamma Quadrant via the Bajoran wormhole, and is a hub of trade and travel for the sector`s denizens. It is run by a joint crew of Starfleet and Bajoran officers, and it is the home port of a number of Starfleet runabouts, as well as the starship USS Defiant.