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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.
“以前做年画是为了糊口，现在是为了传承，更是为了振兴村子。”张廷旭抚摸着因常年握刀而布满老茧的手，道出了赵庄村转型的底层逻辑——从一家一户的“小农副业”，跨越为在政策扶持、资金注入下成长起来的“乡村产业”。
，这一点在搜狗输入法2026中也有详细论述
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