With her hands steady at the controls, her voice calm as she spoke to mission control, Collins piloted the craft through a slow, graceful somersault. With the shuttle's underside now visible, the damage was quickly spotted - and a spacewalk was carried out to repair it.
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A reader calls for museum curators to look for historic scientific apparatus, and a landmark treaty aims to protect the Mediterranean from pollution, in our weekly dip into Nature’s archive.
“通过远程互动、异地收件等方式，中心能够办理北京3301项、天津698项、河北2413项政务服务事项，吸引了不少外地人才和企业来到三河落户，有力支撑了当地高质量发展。”中心负责人石松说。