Illustration of the proposed Lunar Orbital Platform-Gateway, a manned moon-orbiting space station. A manned crew exploration vehicle (CEV) is docked with the space station. At the centre of the space station is the manned habitation module. Attached to the habitation module on the right is a Cygnus Enhanced automated cargo spacecraft. Attached on the left is a JAXA H-II Transfer Vehicle (HTV) automated cargo spacecraft. In the foreground is the Power and Propulsion Element ion propulsion module. The solar voltaic panels have a total length of 53 metres. At the far end is the Orion Multi-Purpose Crew Vehicle, a crewed capsule and service module. The plans for this space station are being led by NASA, co-ordinating between multiple space agencies.