The Long March-5B Y4 carrier rocket, with the Mengtian lab module of China's space station atop, was transferred to the launchpad at Wenchang Spacecraft Launch Site in South China's Hainan province on Oct 25, according to the China Manned Space Agency.

Mengtian, the last major part of China's space station, is scheduled to be launched in the coming days to join the Tianhe core module and the Wentian lab module, forming a T-shaped complex by the end of this year.