Wormhole

Wormholes are tunnels to Hyperspace used in the majority of FTL drives. Opening and stabilizing them requires large amounts of power (that can usually be provided by refined Teritoite), but the increase in power requirements decreases as wormholes get bigger, and are then used to get to Hyperspace. They can also be used for intergalactic travel, although these intergalactic wormholes are mainly permanent and managed by large corporations or national governments.