Full coverage: China Tiangong-2 Space Lab Launch

Taikonauts Jing Haipeng (L) and Chen Dong attend the see-off ceremony of the Shenzhou-11 manned space mission at the Jiuquan Satellite Launch Center in Jiuquan, northwest China's Gansu Province, Oct. 17, 2016. (Xinhua/Li Gang)

Taikonauts Jing Haipeng (L) and Chen Dong attend the see-off ceremony of the Shenzhou-11 manned space mission at the Jiuquan Satellite Launch Center in Jiuquan, northwest China's Gansu Province, Oct. 17, 2016. (Xinhua/Li Gang)

Taikonauts Jing Haipeng (L) and Chen Dong attend the see-off ceremony of the manned Shenzhou-11 mission at the Jiuquan Satellite Launch Center in Jiuquan, northwest China's Gansu Province, Oct. 17, 2016. (Xinhua/Li Gang)

Taikonauts Jing Haipeng (L) and Chen Dong attend the see-off ceremony of the Shenzhou-11 manned space mission at the Jiuquan Satellite Launch Center in Jiuquan, northwest China's Gansu Province, Oct. 17, 2016. (Xinhua/Li Gang)