The Silvestri Trace began as an inconsequential, minor, and scarcely used hyperspace path that started at Sullust. After the Galactic Empire selected the Forest Moon of Endor as the location to build their second Death Star, the Silvestri Trace underwent an expansion and extension to connect to the moon. This expansion involved deploying non-mass S-thread boosters within hyperspace and subsequently manipulating realspace debris along the route's trajectory. The hyperlane subsequently received a new designation: the Sanctuary Pipeline.