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The Resurrection Ship is a long, slim vessel composed of a large glass facade underneath a large metal superstructure sectioned off into individual frames. Underneath the glass, are stored the extra Cylon bodies the ship carries, maintained by artificial means until its ready for a new "host" consciousness. The aft end of the ship contains a large antenna, the FTL and sublight engines.
The interior matches with the Cylon basestar: Spartan metallic rooms with square, dim, light fixtures placed on the walls and ceilings. The rooms are occupied by rebirthing tanks, in which a spare body is placed, thus beginning the downloading and resurrection process (TRS: "Rapture").
The ship carries no offensive or defensive armaments of any kind, and must rely on the bulk of the Cylon fleet for defense. If left alone, Resurrections Ships are completely vulnerable to even the smallest of attacks to the point that Vipers firing through its windows can destroy it (TRS: "Resurrection Ship, Part I").
While Resurrection Ships perform resurrection duties, its the Resurrection Hub that actually controls resurrection. Destroy that and the Resurrection Ships become useless (TRS: "Guess What's Coming to Dinner," "The Hub").
The ship's existence is first discovered by surviving colonials by a Raptor scout detached from the battlestar Pegasus (BS 62) two to three months following the Fall of the Twelve Colonies, after it began tracking a large Cylon fleet jumping to systems with natural resources. Upon further examination, this Cylon fleet was found to be tracking a large Colonial fleet, led by the battlestar Galactica (BS 75). Following a series of internal struggles, the Colonials utilize both battlestars, and attack the Cylon fleet, destroying both basestar escorts and the Resurrection Ship (TRS: "Resurrection Ship, Part II"). Despite the Colonial victory, the celebration is short lived - this Resurrection Ship was just one among many, and while the destruction of the ship put the Cylons on notice, it wasn't long before another was moved up in its place (TRS: "Lay Down Your Burdens, Part II"). Since the Colonial attack, the Cylons allot more basestars to its defense (TRS: "Torn").
Following the outbreak of the Cylon Civil War, all constructed Resurrection Ships fall under the control of John Cavil's loyalist forces. They are hidden out of downloading range when he moves to attack the rebel fleet (TRS: "The Ties That Bind"). One basestar survives, and as retribution, seeks to destroy the main Resurrection Hub - the central control facility that mediates all Resurrection Ships. Without the Hub operational, Resurrection Ships would cease to function. The attack is successful, and Cylon resurrection is destroyed along with the Hub (TRS: "The Hub"). Following the battle, the Resurrection Ships disappear from view, and are presumed to have been staged in a safe location, while the remaining Cylon loyalists attempt to rebuild resurrection technology following the kidnapping of the child Hera Agathon from Galactica's fleet (TRS: "Someone To Watch Over Me"). However, the Colonials strike back at the Cylons, attacking the Colony where Cavil took the child. Galactica is successful in rescuing the child, thus preventing the rebuilding of resurrection technology. By complete chance, the Colony is destroyed shortly after, taking along with it the Cylon's only chances of regaining resurrection abilities. What becomes of the Resurrection Ships after this point, is unknown (TRS: "Daybreak, Part II).