神二十和神二十一航天员乘组完成在轨交接 神二十航天员将于11月5日返回地球

Core Points - The Shenzhou-20 and Shenzhou-21 astronaut crews conducted a handover ceremony on November 4, where they exchanged the keys to the Chinese space station [1] - The Shenzhou-20 crew has completed all scheduled tasks and is set to return to the Dongfeng landing site on November 5 [1] - The China Manned Space Engineering Office reported that preparations for the astronauts' return are being made at the landing site and various testing systems [1]