Borg

The Borg was a sewage-dumping and waste-deposit planet in the ion-4 Sector of the dark Sub-region of the gigaverse. Most civilizations dumped their waste and wastewater on this planet to keep their planet's environments and atmospheres clean. The planet was 65% sewage and sewage rivers, with many waste treatment facilities existing here. skyscrapers full of waste processing existed here. A tiny tribe of aliens made a civilization on a scrap piece of land on the South Pole of the Borg. Tens of millions of tons of Noxious gases emit from the Borg that prevent life forms from existing on the planet and Also even prevents spacecraft from flying towards it easily.