Xinhua News Agency, June 4, according to Lin Xiqiang, deputy director of the China manned Space Engineering Office, the space station has entered the stage of application and development, and at this stage, astronauts will stay at the space station continuously for a long time, usually carrying out two group rotations and one or two supplies per year. Currently, the three astronauts of Shenzhou 16, who are at the space station, plan to return to the Dongfeng landing site in November this year. Before they return, they will usher in the visit and docking of the Shenzhou 17 manned spacecraft. According to the basic introduction of the 2023 manned space mission released by the China manned Space Engineering Office, the Shenzhou 17 manned mission will be launched from the Jiuquan Satellite launch Center in October this year, and the flight crew is still composed of three astronauts.