Space 180 volunteers Tang Yongkang, Luo Jie, Wu Shiyun and Tong Feizhou (right) emerge from the experiment, December 14, 2016. Four volunteers on Wednesday emerged from a 180-day long sealed space survival experiment, designed to assist China's plans for future deep space human exploration. The three men and one woman participated in the 'Space 180' experiment to help determine how well food, water and oxygen can be used and recycled under controlled conditions. The project was run by the Astronaut Centre of China, with the life support system inspired by technology currently used in Shenzhou spacecraft. (Photo: China News Service/Zhu Jiutong)
