There is a plan to prevent such a strike—the Space Surveillance Network, a bevy of sensors that the military uses to track space debris. NASA monitors what’s unofficially known as the “pizza box,” a sort of no-fly zone around the ISS. When pieces of debris are predicted to enter the box—if there’s at least a 1 in 100,000 chance of collision—mission controllers order avoidance maneuvers, firing thrusters that move the ISS and dodge the trash. The technique has been used dozens of times since the first ISS module launched in 1998. But the system only tracks about 45,000 larger pieces, and all sensors have noise. Plus, risk thresholds can miss stuff, sometimes badly. In 2025, Chinese astronauts were briefly stranded at their station after debris hit their return vehicle.
今天早晨到白天多云转晴，山区有零星小雪，北转南风二三级，最高气温5℃。今起三天以晴到多云为主，今天早晨到白天山区出行注意交通安全；25日北风较大，风寒效应显著，注意防风防寒。新京报记者 王景曦SourcePh" style="display:none"，这一点在搜狗输入法2026中也有详细论述
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