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Mythbusting for Tiangong
by Morris Jones
Sydney, Australia (SPX) Sep 22, 2011

Tiangong 1 will comprise and onorbit module with docking ring that will allow a visiting Shenzhou to rendezvous with.

As the launch of China's Tiangong 1 space laboratory draws closer, media attention is intensifying. Unfortunately, there's been another flourish of bad reporting about the mission. It's time to put the record straight on the nature of Tiangong 1.

This module is a small space laboratory with a single docking port. It is not the first module of a large Chinese space station, as some media reports are saying.

Tiangong 1 will test some of the technologies that will be used to build a large Chinese space station in the future, but it is not even a prototype of the modules that will be used to build the station.

Tiangong 1 will be used as a rendezvous and docking target for the unmanned Shenzhou 8 spacecraft, which will launch before the end of this year. China has never docked two spacecraft before. Shenzhou 8 will stay docked with Tiangong 1 for about three weeks, and will then send its descent module to a soft landing back on Earth.

If all has gone well with this flight, we can expect Shenzhou 9 to fly to Tiangong 1 in 2012, this time with astronauts aboard. They will live aboard the laboratory and their docked Shenzhou spacecraft for a short mission, then come home. Later in 2012, the Shenzhou 10 mission will also fly to Tiangong 1, delivering its second (and probably final) crew.

At this stage, we don't know how many astronauts will be aboard Shenzhou 9 or 10. A maximum of three crewmembers can fly aboard one of these spacecraft. It's possible that there will be two or three astronauts on these expeditions. At least one of the missions is expected to carry China's first female astronaut.

Tiangong 1 is a vital step in China's quest to develop a space station, but it must be seen as an intermediate program. Two more Tiangong laboratories are expected to be launched by China in the years ahead, gradually testing more technology for the space station.

Tiangong 3 is expected to have more than one docking port, and will possibly see another regular Tiangong module docked with it before a crew is launched there.

When China's space station is finally assembled in orbit around 2020, the Tiangong spacecraft will see a new lease of life. It will be refitted to serve as a cargo carrier, delivering food and other supplies to the astronauts aboard the space station.

Yes, it's a wonderful program, and we've been waiting a long time to see Tiangong fly. But please don't confuse it with the next step in China's space program. When the final space station is built, it will eclipse the modestly sized Tiangong laboratory in terms of size, performance and achievements.

Dr Morris Jones is an Australian space analyst. Email Replace NOSPAM with @ to send email. Dr Jones will answer media inquiries.


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China to launch unmanned space module by Sept 30
Jiuquan, China (XNA) Sep 21, 2011
China will launch its unmanned space module, Tiangong-1, sometime from Sept. 27 to 30, a spokesperson said here Tuesday. The space module and its carrier rocket, Long-March II-F, have been moved to the launch platform at the Jiuquan Satellite Launch Center in northwest China's Gansu Province, said the project's spokesperson. In the next few days, scientists will conduct the final tes ... read more

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