Advanced Extraterrestrial UFOs use gravity wave propulsion within space-time reconfigured wormholes The Extraterrestrial UFOs that come from the Hyperspace, other dimensions and Universes enter the universe via wormholes. They travel with the help of gravity wave propulsion in which gravity waves provide the required stealth, navigation and propulsion. These wormholes are the biggest source of controversy and also item for in depth scientific and technical research. Creating a wormhole from scratch is not easy. They use the existing superhighways in the middle of galaxies – the central black hole. The black hole sucks in everything but the white hole spits out the same. The white hole on the other end is reconfigured in terms of space-time curvature to allow fast travel of the advanced extraterrestrial UFOs. The Type IV Extraterrestrial civilization has the capability to travel billions of light years in an hour. The use of manipulated space-time curvature within the wormhole and the gravity wave for propulsion allow them to travel very fast.