Intergalactic travel was a form of travel between different galaxies. It was believed the purrgil inspired ancient hyperspace journeys to other galaxies. The Amaxine warriors left the galaxy after they realized they could not defeat the Galactic Republic, largely because of irrevocable differences between the two. Leia Organa later recalled this event during the Amaxine warrior crisis.
It was said that those who have tried to transverse the space outside the galaxy never returned with the only trace of their travels; distorted messages warning of space hazards like geomagnetic anomalies.