Red Noah is one of the three space-arks used by Atlanteans to leave their home in Nebula M78 and reach the Earth. It is disguised as a moving island on which take place between episodes 27 and episode 31. Red Noah finally reveals its nature when Nadia and Jean enter the ship in episode 30-31, as a giant flying saucer operated by a sentient android, which wants to bring Nadia to Atlantis in order to start a new Atlantean empire. Eventually Red Noah is retrieved by Gargoyle who'll be using it as the final weapon for the restoration of Neo Atlantis and the subjugation of the human race.