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总结
本周科学新闻聚焦三件事：NASA“Crew-11”任务因机组成员健康问题触发国际空间站史上首次医疗撤离，任务提前结束并安全溅落，航天员随后抵达休斯敦接受进一步评估，凸显长期载人航天的健康与应急保障挑战。与此同时，NASA宣布取消“火星样本返回”计划，意味着火星取样回地路径与预算优先级将被重塑。另有研究报道，在永久冻土中发现的狼遗骸胃内容物含猛犸犀牛肉，显示极端环境对生物组织保存与远古生态信息还原的价值。
正文
Science news this week: ISS medical evacuation, Mars Sample Return canceled, and woolly rhino flesh found in permafrost wolf Live Science Expedition 74 Continues After Crew-11 Returns to Earth NASA (.gov) Crew-11 astronauts arrive in Houston after 1st-ever medical evacuation from ISS Space Crew 11 safely splashes down after shortened mission Spaceflight Now Astronauts Are Safe After NASA Medical Evacuation From Space Station The New York Times
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