Chinese astronaut candidates practice in a zero-gravity environment during a training session at an unidentified site in Beijing, May 25, 2005. Some 14 Chinese astronauts, including the country's first man to orbit the earth Yang Liwei, are undergoing intensive training to prepare for the upcoming space flight, expected to take place this autumn, according to China's official Xinhua News Agency. Only two of the 14 astronauts will have a chance to orbit the earth for five or six days with the Shenzhou VI spaceship, Xinhua said.