A jumpgate is a large, stationary structure in space three to five miles wide permitting a spaceship to enter or exit Hyperspace. This is important because most spaceships lacked their own onboard Hyperdrive and without the existance of jumpgatates would depend on larger ships equipped with their own hyperdrives for interstellar or intergalactic travel.

The jumpgate was first invented in Year 670 thanks to the joint efforts of private enterprise and the government of the Star Imperium By the time of the United Planets, jumpgates are commonplace.