China on Sunday launched slot paten the second of three modules to its permanent space station, in one of the final missions needed to complete the orbiting outpost by year's end.A live feed on state broadcaster CCTV showed the 23-tonne Wentian ("Quest for the Heavens") laboratory module launching on the back of China's most powerful rocket, the Long March 5B, at 2:22 p.m. (0622 GMT) from the Wenchang Space Launch Center on the southern island of Hainan.
Space agency staff, seen on the live feed observing the progress of the launch from a control room, cheered and applauded when the Wentian separated from the rocket about 10 minutes after the launch.
The launch was "a complete success", CCTV reported modal receh shortly after.
China began constructing the space station in April 2021 with the launch of the Tianhe module, the main living quarters, in the first of 11 crewed and uncrewed missions in the undertaking.
The Wentian lab module, 17.9 metres (59 feet) long, will be where astronauts can carry out scientific experiments, along with the other lab module yet to be launched - Mengtian ("Dreaming of the Heavens").
Wentian features an airlock cabin that is to be the main exit-entry point for extravehicular activities when the station is completed.
It will also serve as short-term living quarters for astronauts during crew rotations on the station, designed for long-term accommodation of just three astronauts.
Mengtian is predicted to be launched in October and, like Wentian, is to dock with Tianhe, forming a T-shaped structure.
The completion of the structure, a few fifth of the International artificial satellite (ISS) by mass, may be a source of pride among ordinary Chinese people and can cap President Xi Jinping's 10 years as leader of China's ruling political party.
On board the orbiter are Shenzhou-14 mission commander Chen Dong and team mates Liu Yang and Cai Xuzhe. they're slated to return to Earth in December with the arrival of the Shenzhou-15 crew.
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