China Launches 3rd and Final Space Station Component

China on Monday launched the third and final module to complete its permanent space station and realize a more than decade-long effort to maintain a constant crewed presence in orbit, as its competition with the U.S. grows increasingly fierce. Mengtian was blasted into space on Monday afternoon from the Wenchang Satellite Launch Center on the southern island province of Hainan. A large crowd of amateur photographers, space enthusiasts and others watched the lift-off from an adjoining beach. Many waved Chinese flags and wore T-shirts emblazoned with the characters for China, reflecting the deep national pride invested in the space program and the technological progress it represents. “The space program is a symbol of a major country and a boost to the modernization of China’s national defense,” said Ni Lexiong, a professor at Shanghai University of Political Science and Law, underscoring the program’s close military links. “It is also a boost to the confidence of the Chinese people, igniting patriotism and positive energy,” Ni said. Mengtian, or “Celestial Dream,” joins Wentian as the second laboratory module for the station, collectively known as Tiangong, or “Celestial Palace.” Both are connected to the Tianhe core module where the crew lives and works. Like its predecessors, Mengtian was launched aboard a Long March-5B Y4 carrier rocket, a member of China’s most powerful family of launch vehicles. Mengtian was due to spend 13 hours in flight before reaching Tiangong, which is populated by a crew of two male and one female astronauts, according to the China Manned Space Agency. Chen Dong, Cai Xuzhe and Liu Yang arrived in early June for a six-month stay on board, during which they will complete the station’s assembly, conduct space walks and carry out additional experiments. Following Mengtian’s arrival, an additional uncrewed Tianzhou cargo craft is due to dock with the station next month, with another crewed mission scheduled for December, at which time crews may overlap as Tiangong has sufficient room to accommodate six astronauts. Mengtian weighs in at about 20 tons with a length of 17.9 meters (58.7 feet) and a diameter of 4.2 meters (13.8 feet). It will provide space for science experiments in zero gravity, an airlock for exposure to the vacuum of space, and a small robotic arm to support extravehicular payloads. The already orbiting 23-ton Wentian laboratory is designed for science and biology experiments and is heavier than any other single-module spacecraft currently in space. Next year, China plans to launch the Xuntian space telescope, which, while not a part of Tiangong, will orbit in sequence with the station and can dock occasionally with it for maintenance. No other additions to the space station have been publicly announced. In all, the station will have about 110 cubic meters (3,880 cubic feet) of pressurized interior space. China’s crewed space program is officially three decades old this year. But it truly got underway in 2003, when China became only the third country after the U.S. and Russia to put a human into space using its own resources. The program is run by the ruling Communist Party’s military wing, the People’s Liberation Army, and has proceeded methodically and almost entirely without outside support. The U.S. excluded China from the International Space Station because of its program’s military ties. Prior to launching the Tianhe module, China’s Manned […]

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