| China Heavenly Palace (Tian Gong I) will be launched author： |
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| China's unmanned space module Tiangong-1 will blast off tonight from northwest China - the first stage in the country's plan to build its own permanent manned space station. The 8.5-ton Tiangong-1, or "Heavenly Palace," will be fired into space between 9:16pm and 9:31pm, mainly to perform the country's first space-docking procedure, a key technique for the building and operation of a space station, Wu Ping, a spokeswoman for China's manned space program, said yesterday. "With the launch of Tiangong, China will set off another space laboratory in 2016 and launch its first space station of 60 tons and with three capsules around 2020," Wu said at the Jiuquan Satellite Launch Center where the module will be sent into orbit. The Tiangong module is due to join up with the unmanned Shenzhou-8 spacecraft which will be launched on November 1, said Cui Jijun, center director and commander-in-chief for the launch. The Tiangong-1 will descent to a lower orbit and carry out two docking procedures with the Shenzhou-8, Wu said. Afterward, the Shenzhou-8 will return to Earth and the Tiangong-1 will rise to its original orbit to wait for the next stage of docking tests. It will dock with another two Chinese spacecraft, including the Shenzhou-10 where an astronaut will board to make the module a space laboratory and a simple model of China's future space station, Cui said. The module will orbit the Earth for two years before dropping into the ocean. During the orbit, three astronauts, at most, can stay in a 15-cubic-meter module to carry out medical and scientific experiments, Wu said. China had selected and begun training candidates to board the Tiangong-1 after the launch of Shenzhou-10 next year. After the Tiangong-1, China will launch Tiangong-2 and Tiangong-3, probably both manned, to complete the laboratory. Wu said Tiangong-1 has technological and economic advantages over the early spacecraft made by the United States and Russia. For example, the Tiangong module can be docked with other craft several times and it can be used as a space laboratory for scientific research after the docking experiment, she said. However, China's first experiment faces challenges because the rendezvous and docking is widely accepted as a technical difficulty, Wu said. She said the launch team for the module had drawn up about 200 contingency plans and held many rehearsals to detect any error in the spacecraft as well as the carrier rocket, because a previous rocket malfunctioned and failed to send a satellite into orbit on August 18. The failure postponed the Tiangong-1 launch because the Long-March 2-F rocket to be used tonight belongs to the same series as the one that malfunctioned. More than 170 improvements had been made to the rocket, Wu said. To contain the Tiangong-1 module, which is larger than China's Shenzhou manned spacecraft, the rocket has had a larger nose fairing fitted, said Jing Muchun, chief designer of the Tiangong mission's carrier rocket system. |
| (2011-9-29 9:22:00hits:481) |