Moya's faster then light way of getting around. Think of it as her warp drive.
(Definition from Scifi.com's FarScape site) Means of faster-than-light travel used by Leviathans. Starburst catapults a Leviathan through a different dimension of space-time. The experience is nearly instantaneous; it alsois nearly impossible to predict where any given Starburst maneuver will end. There is a risk of becoming trapped between dimensions if a Starburst is attempted without sufficient control or power.