Plane

A Plane is an enormous, disc-shaped artificial world which orbits the galactic center and Eden. There are five in total; Alpha, Beta, Gamma, Delta, and Epsilon. The Planes are where each of the chosen races were moved to by the Architects over 40,000 years ago for reasons as of yet unknown. At approximately 5,000 miles (~8,000 kilometers) in diameter, the Planes are the largest known artificial structures in the galaxy. Created by the Architects specifically to house the chosen races, the Irvagaleni, Kugraw, Nox, and Cell, they are full of what you would expect to find on a standard hospitable planet (adjusting for each species’ necessary environments, of course); mountains, oceans, forests, great plains, and deserts are all biomes present in some manner or another on the top of the Planes. The undersides are entirely metal and machinery, as are the large walls at their rims. Each Plane is self-sustaining in terms of climate control, vegetation, wildlife, and atmosphere. The Irvagaleni come from the Beta Plane, the Kugraw from the Gamma Plane, the Nox from Delta, and the Cell from Epsilon. It is suspected there was a fifth race living on the Alpha Plane at some point, but that they went extinct some time prior to the Ascensions. No one can confirm this theory, as races are not permitted to land on another’s Plane without express invitation, and there is no one from Alpha to provide that consent. The working theory is that they killed themselves off by experimenting with Null Energy before they were ready, which is known for its anomalous properties involving displacement of matter.