February 27, 2026 at 2:32 PM UTC
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航空航天供应链咨询机构AeroDynamic Advisory管理董事凯文·迈克尔斯表示，虽然目前钇供应紧张尚未对发动机总装造成打击，但制造商依然高度警惕。“这已经成为一个需要重点监控的项目，也是中国展示其在稀土领域影响力的一个具体例子。”他说。
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.