The JBS Pandora is House Julii's dreadnought flagship. It was first under the control of Antonia in Morning Star during the Battle of Ilium.
The ship is considered a massive floating city, close to two-hundred years old, with districts and multiple fire departments.
In Dark Age, Victra had her entire household, including soldiers and other employees needed to run a city, in the Pandora as she was moving them from Luna to Mars. When Volsung Fa and the Ascomanni invaded the ship, she was forced to abandon the vessel and have them all evacuate through the escape pods.