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Shuttle Gets a Safety Makeover for Its Return to Flight

机译：航天飞机返回航班进行了安全改造

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When NASA's Discovery orbiter returns the shuttle fleet to flight status later this year, it will mark the culmination of a series of modifications, redesigns and the development of new tools designed to in-crease the safety of human spaceflight. Those changes, more than two years in the making, include the installation of new tools for on-orbit inspection, sensors to detect impacts during launch and a host of new processes to prevent accidents like the one that led to the destruction of the Space Shuttle Columbia and the deaths of its seven-astronaut crew Feb. 1, 2003. Columbia was damaged during launch by a suitcase-sized chunk of foam insulation, which detached from the external tank and ripped a hole in the leading edge of the or-biter's left wing. During re-entry, hot gases entered the hole and caused so much damage that Columbia broke up.
机译：当NASA的“探索”轨道器于今年晚些时候使航天飞机机队恢复飞行状态时，它将标志着一系列旨在提高人类航天安全性的修改，重新设计和新工具的开发的高潮。这些变化（进行了两年多）包括安装新的在轨检查工具，在发射过程中检测撞击的传感器以及一系列新的防止事故的过程，例如导致航天飞机损毁的过程。哥伦比亚及其七名宇航员的死亡。2003年2月1日。哥伦比亚号在发射过程中被手提箱大小的泡沫绝缘材料损坏，该材料从外舱分离并在轨道飞行器前缘撕开一个孔。左翼。在重新进入过程中，热气进入孔中并造成了巨大破坏，以至于哥伦比亚破裂了。

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