Southern Lights

The Southern Lights was an nearly impassable barrier in the Orion Spur of the Milky Way that cut of the Boran Expanse and the Terran Expanse. It was full of proto stars, systems and planets meaning that there it was nearly impossible to find a light speed route through it. The only way through is to travel by non faster than light travel. Once somebody went through they could set up a jump gate that could bypass the southern lights entirely, that someone was [redacted] in 2557.

The Southern Lights is also used as the human Galactic South of the entire Milky Way