Cylon homeworld

The Cylon homeworld is the planet which the Cylons established as their main base after rebelling against the Twelve Colonies. The Cylons presumably leave for this world with the armistice of the Cylon War (Miniseries).

The Colonials apparently know the general location of the Cylon homeworld (The Hand of God).

The escaping Fleet is too far away from the Twelve Colonies for Cylon agents or Raiders to transmit their consciousness back to the Cylon homeworld. As a result, the Cylons built the Resurrection Ship, which allow Cylon agents to be downloaded into a new body. The personality of Raiders are also downloadable, but it is presumed that the Resurrection Ship stores personalities of downed Raiders and transfers them to a nearby basestar, since pilot bodies or their fighter shells do not appear to be stored in a Resurrection Ship. It can be assumed that the Cylon homeworld is relatively near the Twelve Colonies, because when the Cylon fleet following Galactica was in deep space far away from the Colonies, it was also stated to be far out of range from the Cylon homeworld -- however, the Twelve Colonies themselves do appear to be in normal downloading-range from the Cylon homeworld ("Resurrection Ship, Part I," "Scar").

Notes

When Ron D. Moore was questioned why the "Cylon POV episode", "Downloaded", took place on Cylon-occupied Caprica instead of the Cylon homeworld in an interview with Now Playing Magazine on February 23, 2006, he stated that the series will probably not show that planet any time in the forseeable future, explaining that:

"That episode ("Downloaded") will not have that, and we still don’t have any plans to do that...My instinct is kind of not to go there. I feel like I don’t have a great clear vision of it; at this point if we tried to do something there it would look very familiar and not as interesting as it is in your imagination."

Moore goes on to say that he felt it was more exciting when left to the imagination, because "It still has to be a place where bipedal creatures can walk around and do things": Presumably, it has to be able to support the humanoid Cylons, who are near-human enough that their home environment would be fairly similar to a human one, and not drastically exotic.