Space Station returns to a full crew complement after a month
摘要
2月14日，载有四名宇航员的“龙”飞船与国际空间站对接，使站内宇航员总数恢复至七人。此次抵达的宇航员来自美国、欧洲和俄罗斯航天机构。自2020年底以来，美国国家航空航天局一直致力于维持至少四名“美国轨道段”宇航员在轨工作，该团队由来自美国、加拿大、欧洲和日本的宇航员组成，负责操作由NASA及其合作伙伴维护的空间站区域。
A Crew Dragon spacecraft docked with the International Space Station on Valentine's Day, and astronauts popped open the hatches at 5:14 pm ET (22:14 UTC) on Saturday evening.
The arrival of four new astronauts as part of the Crew 12 mission—Jessica Meir and Jack Hathaway of NASA, Sophie Adenot of the European Space Agency, and Andrey Fedyaev of Roscosmos—brought the total number of crew on board the space station to seven, giving the US space agency a full complement in orbit.
The number of astronauts living on board the station fluctuates over time, depending on crew rotations and private astronauts making shorter stays, but since Crew Dragon began flying regularly at the end of 2020 NASA has sought to keep at least four "USOS" astronauts on board at all time. This stands for "US Orbital Segment," and means astronauts from the United States, Canada, Europe, and Japan who are trained to operate the areas of the station maintained by NASA and its partner astronauts.
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