29 (Xinhua) -- The Shenzhou-16 taikonauts handed over control of the Tiangong space station to the newly arrived Shenzhou-17 crew on Sunday, said the China Manned Space Agency.　　The two crews held a handover ceremony after the Shenzhou-16 taikonauts had completed all set tasks. They are due to return to Earth on Oct.The Dongfeng Landing Site, located in north China's Inner Mongolia Autonomous Region, is preparing for the return of Shenzhou-16 from space. ■