The extraterrestrial civilizations in the dark matter of the universe Very advanced extraterrestrial civilizations strive in the dark matter universe. 99% of our Universe is Dark Matter. Dark matter is material that gravitates but does not emit very much light. More specifically, it is material, which has a high ratio of mass to luminosity. The mass of a galaxy grows with radius. It requires a dark matter halo. Dark matter is less comprehendible by contemporary physics. It is the quantum medium that interfaces the Hyperspace and the 3-D universe of ours. The real universe is in the dark matter. The rest 1% luminous part is just projection. Our real existence is actually in the Hyperspace and inside a Type IV extraterrestrial civilization in the dark matter. The 3-D universe that we can feel and see is a temporary projection within a 3-D spatial dimension and one forward moving time dimension. The advanced extraterrestrial civilizations migrate into the Hyperspace and then try to further migrate into the chilled universe. The chilled universe is indestructible and comprises of limitless time and spatial dimensions.