1.2 Galactic Barrier & Great Barrier

Describes the toroidal Galactic Barrier that hinders extragalactic travel and the related Great Barrier surrounding the galactic core.

Detail diagram of the toroidal Galactic Barrier and the spherical Great Barrier surrounding the galactic core, with arrows indicating the barriers around the disk.

The Galactic Barrier, an energy field with unpredictable neurogenic properties, surrounds the galactic disk in a roughly toroidal shape, and has prevented most attempts at exploration beyond our galaxy's borders.

The Great Barrier is a distinct but related energy field that surrounds a spherical region about 15,000 LY in diameter at the galaxy's center. The Great Barrier was first traversed in 2287, but the galactic core remains largely unexplored, due to high levels of radiation and intense gravimetric flux.