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Crewed Mission to Mars May Be Exposed to Unsafe Levels of Radiation, Study Warns_我的网站

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一 |     While scientists and science fiction authors alike have long dreamed of sending crewed missions to Mars, a new study suggests these plans may hit a snag – a big one.,The authors of a yet to be peer-reviewed study argue that the participants of such a mission to Mars would end up being exposed to radiation – namely, to “energetic charged particles from Galactic and Solar origin” – both while in transit and while on the planet itself, with the “thin spacecraft shield” and “rarefied Martian atmosphere” offering little in the way of protection.,The research team attempted to gauge the impact of a simulated 1,000-day mission to Mars on various organs of the human body, and concluded that astronauts may be exposed to radiation doses above one Sievert, which is over the safe limit set by most space agencies, New Scientist points out.,“We suggest mitigation strategies such as improved ways of shielding and dietary supplements, and make recommendations for the safety of astronauts in future crewed missions to Mars,” the team wrote in the abstract of their work available on the arXiv preprint server.,Ideas about how astronauts may be protected from radiation during a mission to Mars have already been proposed, such as the concept of a radiation shield comprised of a fungus found growing at the Chernobyl Nuclear Power Plant.,Last year, one architecture studio even unveiled a project for a self-sufficient and sustainable city that would be built on the red planet itself.。    2026年8月24日,综合越南Vietnam.vn、美国Military Watch Magazine、Hamer Intel等多家媒体报道,2架苏-57领衔空袭敖德萨:俄军五代机在高强度破交战中的新角色.        俄罗斯空天军出动两架苏-57第五代隐身战斗机,在针对乌克兰黑海港口城市敖德萨的大规模空袭中扮演了核心角色。当天,一个由六架苏-34、两架苏-57和四架苏-35组成的大型空中编队,在黑海、克里米亚和亚速海空域展开协同打击。    空袭的全貌:不止是“两架飞机”    8月23日的空袭是一套多波次、多平台协同的复合打击。攻击序列显示:    反辐射压制:苏-34和苏-35率先发射Kh-31P反辐射导弹,旨在摧毁或压制敖德萨周边乌军防空雷达,为后续攻击“清场”。    导弹与无人机突防:紧随其后的是从克里米亚发射的“缟玛瑙”超音速巡航导弹、“班德罗尔”巡航导弹,以及至少10架“天竺葵-4”喷气式无人机。    有人战机补刀:在防空系统被压制、目标被锁定后,作为“空中指挥所”的苏-34和苏-57发射Kh-59/69巡航导弹和KAB滑翔炸弹,对港口设施实施最后打击。    苏-57的角色:隐身弹药库而非“穿透突防”    值得注意的是,此次行动中苏-57并未深入乌克兰领空进行高风险突防,而是在黑海上空安全空域扮演远程精确打击平台的角色。其主要武器为Kh-59/69空对地巡航导弹。乌克兰消息源此前已确认,苏-57的活动在2024年显著增加,到2025年8月已扩展至整个苏-57机队。    敖德萨:八月的持续性打击    整个8月,敖德萨遭受了反复的联合打击,主要针对港口、运输、能源和物流基础设施。

二 | 此前8月9日、8月19日至20日和8月21日至22日均已遭受大规模攻击。23日的空袭还波及了关键铁路基础设施。敖德萨作为乌克兰在黑海的主要物流和出口枢纽,频繁遭到攻击旨在限制北约向乌克兰输送武器装备,并对乌克兰及其西方支持者的经济造成进一步压力。    苏-57在23日空袭中的作用,展示了俄军五代机的典型“实战化”用法——在对抗激烈的战区边缘,作为隐身弹药库和安全通信节点参与作战。俄空天军并未追求将苏-57作为“踹门”利器进行高风险穿透打击,而是将其融入常规的多层次“破交战”,以远程精确打击方式消耗乌克兰的战略资源。在苏-57机队规模估计已扩充至50至60架的背景下,它在黑海破交战中的角色只会更加突出。返回,查看更多

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