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ion in Guizhou province, Southwest China, FAST is believed to be the world's most sensitive radio telescope.Its tasks include observation of pulsars, exploration of interstellar molecules, and monitoring interstellar com

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munication signals.As Tiangong-1 re-entered the Earth's atmosphere on Monday, Chinese bid farewell to the experimental space lab, which is regarded as a pioneer of China's future space station.The space lab re-entered th

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e Earth's atmosphere at around 8:15 a.m. on Monday over the South Pacific, and was mostly burnt up in the atmosphere, the China Manned Space Engineering Office (CMSEO) said.Launched at the Jiuquan Satellite Launch Center i

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n northwest China on Sept. 29, 2011, Tiangong-1 was tasked to test the technologies in rendezvous and docking between spacecraft and to accumulate experience for developing a space station.It had successfully docked with Shenz

hou-8, Shenzhou-9 and Shenzhou-10 spacecraft, and was visited by six astronauts, including two females.In June 2013, female astronaut Wang Yaping aboard Tiangong-1 delivered a lecture to students on Earth about physics, inspir

ing public enthusiasm for science and space exploration.Tiangong-1Tiangong-1 was in service for four and a half years, two and a half years longer than its designed life, making important co