China plans to expand its space station into six modules from the existing three in coming years, a researcher at the China Academy of Space Technology said. It will be at 180 tonnes after expansion, about 40% of the mass of the International Space Station..
A multi-functional expansion module with six docking ports will first be launched in the coming years to allow this expansion. This will dock at the forward port of the Tianhe core module. Full size modules can then be added to Tiangong..
Other improvements planned for Tiangong include 3D printers and developing intelligent robots, upgrading connectivity and robotic arms, and developing a space debris observation, detection and warning system. A digital twin of the station will also be constructed..