记者今天（30日）从中国载人航天工程办公室获悉，神舟二十一号载人飞船计划将于10月31日23时44分发射，飞行乘组由张陆、武飞、张洪章组成，张陆担任指令长。
China plans to launch three astronauts into low-Earth orbit on Friday night to exchange crews onboard its Tiangong space station, according to the China Manned Space Agency.
Zhang Jingbo, a spokesman for the agency, said at a news conference on Thursday morning at the Jiuquan Satellite Launch Center in the Inner Mongolia autonomous region in Northwest China, that a Long March 2F carrier rocket is scheduled for lift off from the Jiuquan spaceport at 11:44 pm on Friday.
The rocket will carry the Shenzhou XXI mission crew, headed by Senior Colonel Zhang Lu, toward the Tiangong, which has been manned by their Shenzhou XX peers for more than six months.
3名航天员分别为航天驾驶员、飞行工程师和载荷，涵盖了我国现役3种航天员类型。
航天员张陆执行过神舟十五号载人飞行任务，武飞和张洪章均来自于我国第三批航天员，是首次执行飞行任务。
其中，武飞入选前是中国航天科技集团有限公司空间技术研究院工程师，张洪章入选前是中国科学院大连化学物理研究所研究员。
The mission will become the second time for Zhang Lu to fly in space, some 29 months after he returned from the Shenzhou XV flight.
It will be the debut mission for his two crewmates: Major Wu Fei, the Shenzhou XXI's spaceflight engineer, and mission payload specialist Zhang Hongzhang.
目前，任务各项准备工作正在稳步推进，执行此次发射任务的长征二号F遥二十一运载火箭即将加注推进剂。按计划，神舟二十一号载人飞船入轨后，将采用自主快速交会对接模式，约3.5小时后对接于天和核心舱前向端口，形成三船三舱组合体。
The rocket's propellant fueling will begin at its service tower later on Thursday, and other pre-launch preparations are already underway, according to the spokesman.
今天（30日），3名航天员将在酒泉卫星发射中心问天阁与中外媒体记者集体见面。
