Chinese astronauts and scientists attend a dialog between them and local students in south China's Hong Kong, Aug. 12, 2012. Tiangong-1/Shenzhou-9 space mission delegation comprising of Chinese astronauts and scientists shared their knowledge and experience concerning aerospace with some 500 students from eight Hong Kong universities on Sunday. (Xinhua/Liao Zida)
Chinese astronauts and scientists pose for group pictures with local students in south China's Hong Kong, Aug. 12, 2012. Tiangong-1/Shenzhou-9 space mission delegation comprising of Chinese astronauts and scientists shared their knowledge and experience concerning aerospace with some 500 students from eight Hong Kong universities on Sunday. (Xinhua/Liao Zida)
Chinese astronauts and scientists communicate with local students in south China's Hong Kong, Aug. 12, 2012. Tiangong-1/Shenzhou-9 space mission delegation comprising of Chinese astronauts and scientists shared their knowledge and experience concerning aerospace with some 500 students from eight Hong Kong universities on Sunday. (Xinhua/Liao Zida)