Chinese astronauts will take a space walk when they fly Shenzhou-7, he disclosed. Regarding a manned Chinese moon mission, Yang said it is too early to mention it and no Chinese astronaut had so far been trained for this purpose.

There are also funny memories. There was a toilet in the spaceship, but it could not be used before the spaceship entered orbit. Yang said he wore a diaper during his space flight. However, he didn't urinate in it. "Better not to piss in the diaper," he said, "Babies don't like it, and nor do adults."

"When the spaceship entered outer space, I saw my beautiful homeland," he said, recalling his first space mission, "I was amazed by the view."

Looking through the window, Yang saw the spaceship lit up by the sun, the blue Earth, clouds over the Earth, China's coastline, the seas and oceans. "All these made me feel the greatness of Mankind, the greatness of the Chinese nation, and the greatness of our nation's power in science and technology," he said.