China unveiled a replica of its first permanently crewed space station.
It would replace the international community's orbiting laboratoryand symbolises the country's major ambitions beyond Earth.
The 17-metre (55-foot) core module was a star attraction at the biennial Airshow China in the southern coastal city of Zhuhai.
The International Space Station (ISS) - a collaboration between the United States, Russia, Canada, Europe and Japan has been in operation since 1998 but is due to be retired in 2024.
China will then have the only space station in orbit, though it will be much smaller than the ISS which weighs 400 tonnes and is as large as a football pitch.