But what if it’s not fine? Even back in 1996, before a single component of the ISS was launched into orbit, NASA foresaw the possibility of an even worse worst-case scenario: an uncontrolled reentry. The crux of this scenario involves multiple systems failing in an improbable but not completely impossible cascade. Cabin depressurization could damage the avionics. The electrical power system could go offline, along with thermal control and data handling. Without these, systems controlling coolant and even propellant could break down. Unmoored, the ISS would edge slowly toward Earth, maybe over a year or two, with no way to control where it is headed or where its debris might land. And no, we could not save ourselves by blowing the station up. This would be extremely dangerous and almost certainly create an enormous amount of space trash—which is how we got into this hypothetical mess in the first place.
Москвичей предупредили о потепленииСиноптик Ильин: 1 марта в Москве потеплеет до плюс 4 градусов
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США, Израиль и Иран обмениваются масштабными ракетными ударами.Страшные кадры войны и ее последствий со всего Ближнего Востока1 марта 2026
“头足类动物能够通过调控皮肤的乳突（皮肤上可伸缩的微小突起）和色素细胞改变自身纹理和颜色，这是它们实现惊人伪装能力的关键。”该论文的共同通讯作者、斯坦福大学博士生西达尔特·多希在接受本报记者采访时表示，研究团队一直希望能在工程材料上复现这一精妙的自然机制。一次偶然的发现让他们找到了突破口。“我们发现，一块曾在扫描电子显微镜下观察过的PEDOT:PSS（一种导电聚合物）样品，其被电子束照射的区域，溶胀行为（指材料接触溶剂时因溶剂分子渗透而发生的膨胀现象）与未照射区域截然不同。受到电子束照射的区域，其结构变得紧致，遇水后的膨胀能力被大大抑制；而未照射的区域则能自由吸水大幅隆起。”多希说。