长征五号B 
Long March-5B


5月5日，为我国载人空间站工程研制的长征五号B运载火箭在海南文昌首飞成功，正式拉开我国载人航天工程“第三步”任务的序幕。 新华社发 屠海超 摄 图源：新华网

5月5日18时00分，长征五号B运载火箭在位于海南的我国文昌航天发射场首飞成功，将新一代载人飞船试验船，以及柔性充气式货物返回舱试验舱的组合体，送入了预定轨道，首飞任务取得圆满成功，实现空间站阶段飞行任务首战告捷，也拉开了我国载人航天工程“第三步”任务序幕。（戳这里回顾）

China's new large carrier rocket Long March-5B made its maiden flight on Tuesday, sending the trial version of China's new-generation manned spaceship and a cargo return capsule for test into space. The white large rocket blasted off from the Wenchang Space Launch Center on the coast of southern China's island province of Hainan at 6 p.m. (Beijing Time), according to the China Manned Space Agency (CMSA). The successful flight inaugurates the "third step" of China's manned space program, which is to construct a space station, said CMSA.