Stargate

A stargate in the 1987-1996 animated TV-series is a Triceraton technology, which the Triceratons use to create a warp in the spacetime fabric.

In the Night of the Dark Turtle, the Triceratons after arriving to Earth open a stargate wide enough for Earth to slip through, waiting for the Earth's orbit to carry the planet towas the stargate and finally into it, transporting Earth across the galaxy towas the Triceraton homeworlds.