Chinese President Hu Jintao (R) and other top leaders meet with astronauts, space scientists and engineers of the manned space docking mission, at the Great Hall of the People in Beijing, capital of China, July 27, 2012. Shenzhou-9 spacecraft, with three astronauts aboard, returned from a 13-day mission on June 29, after the crew succeeded in manually docking the spacecraft with space lab module Tiangong-1, paving the way for possibly building a space station. (Xinhua/Ma Zhancheng)