World Ship

A World Ship is a super massive, very heavily armed, self propelled colonial vessel. They serve as the primary home of the Buyyor, but also operate in the service of several other races, but only on a limited basis. For the Buyyor, however, their World Ships are the only place they live, as they have no planets anywhere in the galaxy that they call their own. A world ship is typically a completely self contained biosphere, with life support, agricultural, living quarters, and so much more, all contained within one large, blimp like ship of extraordinary size. The largest World Ship in the entire galaxy, the Buyyor prime world, is slightly larger than Earth's moon and boasts an onboard population of several billion.

Some of the smallest ships, like the one found near Sebius during the events of Destiny's Mission only support a population of around three to four hundred million. All World Ships are fully warp capable, save only for the Buyyor prime world (and only because of its sheer size), and able to move at FTL speeds. However, due to their super massive size, most World Ships are limited to a paltry speed of just 40 light years per day. But, given that they're a home away from home, speed is not important for these ships, so even that slow pace is completely acceptable to the Buyyor, and all those who use ships like this. By comparison, most other ships in the galaxy are able to travel at speeds of around 1400 light years per day.