European Space Agency to build module for Gateway space station Stuart Clark The European Space Agency (Esa) has signed a contract to begin building the module to supply communications and refuelling for the international lunar Gateway space station. The European System Providing Refuelling, Infrastructure and Telecommunications (Esprit) will consist of two separate units. The communications system will be used by astronauts to provide data, voice and video links to and from the lunar surface. It will be mounted on the Nasa Habitation and Logistics Outpost (Halo) module, which is scheduled for launch in 2024. Gallery: The top space stories of the month! (Space)