Plait Expanse (SG)

The Plait Expanse (also sometimes called the Plait Nebula) is a multi-colored field of stellar debris, newly forming stars and gamma radiation. The nature of the Expanse causes any planet or spaceship within it to suffer problems with communications, Transwarp projections, and anything sensor-related. Its ionizing effects also can cause the atmosphere of a planet to glow with a strange, blue-white radiance.

Shattered Glass
Upon discovering that Cybertron would soon pass close to the Plait Expanse — preventing all space travel for 0.15 vorns and disrupting communications — the Autobots hurried to get the Ark launched beforehand, and the Decepticons hurried the Nemesis's preparations to be able to chase after.