科学与环境
Four astronauts return to Earth after eight months in space
来源: Phys.org - latest science and technology news stories · 发布于
Four astronauts returned to Earth from the International Space Station on Thursday after hurrying there eight months ago to replace an ailing colleague and his crew.
Four astronauts returned to Earth from the International Space Station on Thursday after hurrying there eight months ago to replace an ailing colleague and his crew.
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