China's space lab Tiangong-2 roars into the air on the back of a Long March-2F rocket from the Jiuquan Satellite Launch Center in northwest China, Sept. 15, 2016. (Photo: Xinhua/Ju Zhenhua)
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China's space lab Tiangong-2 roars into the air on the back of a Long March-2F rocket from the Jiuquan Satellite Launch Center in northwest China, Sept. 15, 2016. (Photo: Xinhua/Ju Zhenhua)
