Wang Xiuju, a physics teacher of Liu Yang, one of the three taikonauts who will be carried by the Shenzhou-9 spaceship for China's first manned space docking mission with the orbiting Tiangong-1 space lab module, is interviewed in Zhengzhou, capital of central China's Henan Province, June 13, 2012. Zhengzhou is the hometown of Liu Yang. [Xinhua]