This is the moment a SpaceX capsule left the International Space Station on an emergency return flight to Earth prompted by a medical issue afflicting one of the astronauts. It is Nasa’s first medical evacuation, with the mission being cut a month short. Onboard were American astronauts Mike Fincke and Zena Cardman, a Russian cosmonaut Oleg Platonov, and a Japanese astronaut Kimiya Yui. Computer modelling predicted a medical evacuation from the space station every three years but Nasa has not had one before in its 65 years of human spaceflight
Nasa said the rocket will be prepared over the next few days for what it calls a "wet dress rehearsal" - a test for fuel operations and countdown procedures.，更多细节参见下载安装 谷歌浏览器 开启极速安全的 上网之旅。
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