国际空间站第75远征队为 Dragon 货运飞船装载科学样本，细菌DNA与3D打印血管将返航
美国国家航空航天局（NASA）11月12日介绍，国际空间站第75远征队当天主要忙于为一艘美国货运飞船装载物资、准备其离站返航，并清洁了一对舱外航天服。当天站上的研究课题包括太空农业与超级智能（SI）。
这艘 SpaceX 的 Dragon 货运飞船于10月15日把6,300多磅科学实验设备、补给与硬件送达空间站，如今接近离站。它送来的一批实验正在收尾，细菌 DNA、3D 打印血管等样本正被装船，准备带回地球分析。一套模拟自然日光节律、帮助乘员调节睡眠的专用照明硬件，在站上测试3年多后也将随船返回。
NASA 飞行工程师 Anil Menon 与 Jessica Watkins 当天开始往 Dragon 里装载各类货物。离站前一天，乘员将把保存在便携冷冻箱与培养箱中的关键研究样本完成最后转移。Menon 还与加拿大航天局飞行工程师 Joshua Kutryk 一起重新整理并固定返回货物，确保飞船质量分布均匀、重心平衡，以便安全再入大气层并在太平洋溅落。
NASA 飞行工程师 Luke Delaney 先在日本 Kibo 实验舱布置生命科学手套箱，为一项太空植物学研究做准备。这项名为 MVP-Plant-02 的研究将考察植物在微重力下如何应对病害，为未来深空任务中养活乘员积累经验。随后 Delaney 前往 Quest 气闸舱，清洁了 Menon 与 Kutryk 在10月29日与11月5日两次太空行走中穿过的舱外服的冷却与通风系统。（来源：美国国家航空航天局）
Expedition 75 Crew Packs Dragon With Science For Return: Bacterial DNA And 3D-Printed Blood Vessels Head Home
NASA said on November 12 that the International Space Station's Expedition 75 crew spent the day mainly packing a U.S. cargo spacecraft for its upcoming departure and cleaning a pair of spacesuits. The day's research topics aboard the station included space agriculture and super intelligence (SI).
The SpaceX Dragon cargo spacecraft is nearing the end of its stay after delivering more than 6,300 pounds of science, supplies and hardware on October 15. A series of experiments Dragon delivered is concluding, and samples such as bacterial DNA and 3D-printed blood vessels are being readied for return and analysis back on Earth. Specialized lighting hardware designed to recreate natural daylight patterns and help regulate crew sleep, tested aboard the station for more than three years, is also being returned.
NASA flight engineers Anil Menon and Jessica Watkins began loading a variety of payloads inside Dragon. The packing will be finalized the day before Dragon leaves, when the crew completes the transfer of critical research samples kept in portable freezers and incubators. Menon also worked with Canadian Space Agency flight engineer Joshua Kutryk to rearrange and secure the return cargo so its mass is evenly distributed and its center of gravity balanced for a safe reentry and splashdown in the Pacific Ocean.
NASA flight engineer Luke Delaney set up the Life Sciences Glovebox in the Japanese Kibo laboratory module for an upcoming space botany investigation. The MVP-Plant-02 study will explore how plants respond to disease in microgravity, to learn how to sustain crews on future exploration missions. Delaney then moved to the Quest airlock and cleaned the cooling and ventilation systems inside a pair of spacesuits Menon and Kutryk wore during spacewalks on October 29 and November 5. (Source: NASA)
来源：美国国家航空航天局
发布：GSM·美国（发布链接）
图片来源：图：SpaceX Dragon 飞船对接在国际空间站上（NASA 官方照片，公共领域，经 Wikimedia Commons）。 / Photo: A SpaceX Dragon spacecraft docked to the International Space Station (NASA, public domain, via Wikimedia Commons).
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