The sphere ship is stored within a Borg cube ship under a large slide-away hatch and used as an escape vessel upon the destruction of the cube in the Battle of Sector 001. This particular sphere was seen to be capable of time travel. After traveling back in time and attempting to disrupt humanity's first contact, the sphere was destroyed. It is unknown if other sphere ships are commonly carried aboard cubes or commonly possess time travel capabilities. They are equipped with reactive armour and carry a complement of 10,000 borg drones.

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