5月10日，第一组4名参与实验的志愿者在入舱前宣誓。当日，北京航空航天大学实验室“月宫一号”举行志愿者入舱仪式，8名志愿者分成两组将轮流进入“月宫一号”进行为期365天的实验，以完成“月宫365”计划。[新华社 鞠焕宗 摄]
Four volunteers take the oath in front of the Lunar Palace 1, a facility for conducting bio-regenerative life-support systems experiments key to setting up a lunar base, in Beijing University for Aeronautics and Astronautics (BUAA) in Beijing, capital of China, May 10, 2017. A ceremony was held in the BUAA on Wednesday as 8 volunteers start a 365-day experiment in two groups in the Lunar Palace 1. (Xinhua/Ju Huanzong)