Урсула фон дер Ляйен. Фото: Valentyn Ogirenko / Reuters
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.
。safew官方版本下载是该领域的重要参考
Владимир Путин и Дональд Трамп. Фото: Гавриил Григоров / РИА Новости
Party billed it as a two-horse race with Reform but Greens’ Hannah Spencer connected with voters in a way it could not
应对疫情等因素影响，要求“发挥好防止返贫监测帮扶机制预警响应作用”；