Volunteers conclude 370-day stay in simulated lunar base

Four volunteers step out of the Yuegong-1, a self-contained simulated space lab, at Beihang University in Beijing on Tuesday, May 15, 2018. They were originally scheduled for a 105-day stay that would end on May 10 but were asked to stay for another five days to see how they would mentally cope with the sudden change. The four had previously spent 60 days in the lab before being released on July 9, 2017.[Photo: China Plus]