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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.
，这一点在体育直播中也有详细论述
На помощь российским туристам на Ближнем Востоке ушли миллиарды рублей20:47，推荐阅读体育直播获取更多信息
2010年，北航计算机系硕士毕业后，乔忠良加入创业阶段的小米，成为小米首位应届生；离职时，他已经担任小米MIUI研发负责人5年，创下小米从应届生晋升到总经理的最快纪录。
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