Bright aura surrounding and moving with UFO. Killeen, TX.Large, flat, bright, auras that moved about slowly. Directly over Fort Hood, Texas. There were several very long jet vapor trails in the sky which provided great differentiation. These trails seemed to be all around the craft and moved up and down with it. The trails were bright and distinct. One went up slightly then light and trail just vanished. The other 7 disappeared behind trees. A jet flew around our location about a mile from us just over the trees and the jet made no sound at all.