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.
Science & Environment
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Altman is the latest high profile exec pointing to “taste” as a potential advantage for job seekers as well as the growing number of employees dealing with AI job anxiety. OpenAI president Greg Brockman said the same last week. “Taste is a new core skill,” he wrote in a post on X.
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On this day, 30 years ago, the original Pokémon games, Pokémon Red and Pokémon Green, were first released in Japan.，推荐阅读91视频获取更多信息
不过，好在车企和相关部门都在大力发展下沉市场。