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China De-orbits Tiangong-2, Looks Ahead to Permanent Space Station

By Doug Messier
Parabolic Arc
July 22, 2019
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China de-orbited its Tiangong-2 space station on Friday, ending a precursor mission to the establishment of a large, multi-module station beginning in 2020.

Launched on Sept. 15, 2016, Tiangong-2 hosted a 30-day visit by astronauts Jing Haipeng and Chen Dong beginning the following month. The Shenzhou 11 crew tested out the station’s life support and other systems, performed experiments, released a satellite, and grew rice and vegetables before returning to Earth after 33 days in space.

In April 2017, the Tianzhou-1 cargo ship docked with the space station. The automated ship refueled Tiangong-1 and un-docked and re-docked with the station twice in the months that followed. Tianzhou-1 subsequently separated from the station and was de-orbited on Sept. 22, 2017.

Tiangong-2 was 10.4 m (34 ft) long and weighed 8,600 kg (18,960 lb). That is about half the size of the Salyut 1 space station the Soviet Union launched in 1971.

The station’s predecessor, Tiangong-1, hosted six Chinese astronauts during two crew visits in 2012 and 2013.

China plans to launch the Tianhe-1 core module for a permanent space station in 2020. Two laboratory modules would be subsequently attached to the station over the next two to three years. The facility will be roughly the size of the Mir space station built by the Soviet Union beginning in 1986 and about one-fifth the mass of the International Space Station.

China has opened up its human spaceflight program to other nations. European astronauts have been training for flights to the new space station aboard Shenzhou vehicles. And China has offered to fly foreign experiments to the facility.