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.
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近日,一车主驾驶领克Z20夜间在高速上行驶时,语音操作误关大灯致车辆撞上护栏一事引发网友广泛关注。针对此事,领克汽车销售有限公司副总经理穆军通过社交平台进行回应。2月26日,穆军在其个人微博发文称:“昨晚发生一起领克Z20车辆行驶中语音误操作控制关闭大灯的情况,今天我们第一时间完成了语音控制优化方案,现已通过云端推送更新,后续在行驶状态下只能通过手动控制大灯关闭,请大家放心。感谢用户的反馈与监督,对此带来的困扰我们深表歉意,领克始终守护您的安全。”(财联社)。夫子对此有专业解读
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