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.
Four years ago, MLS Next Pro implemented a pair of rules geared towards eliminating time-wasting. Now, just months ahead of the 2026 World Cup, MLS’s experimentation is set to be adopted globally. The International Football Association Board (Ifab), the sport’s rule-making body, is set to meet this weekend and is widely expected to adopt both changes.
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联通国内国外两个大市场，有利于资源要素在更大范围畅通流动，形成对全球先进资源要素的强大引力场。
Publication date: 10 March 2026