问题，它们数量太大。美国目前跟踪到大约 2 万片独立碎片漂浮在较低轨道之上。
而当两块碎片相撞时，会有更多碎片生成。But every time that you have a collision you're generating more pieces of debris. Those pieces of debris, then collide with more pieces of debris and you get this caskey to *** aller and.就像那幢大楼原来一座整体建筑可以变成数千甚至上百万块碎片。但是这些太空中数量激增碎片并不只是静态垃圾堆，他们会获得新生命，成为高能生。
Daughter.Space junk debris, and pose a real problem 'cause. It's going so fast, orbital velocity of 17,500 miles an hour. Something like the size. Flake of paint can be deadly.这些高速移动太空碎片，即使一些直径只有 1 厘米，仍对轨道上宇航员和航天飞机构成极大威胁。 2009 年，两颗卫星撞击产生碎片险些在数月之后击中国际空间站。If there's a known piece of space debris. That's in the path of the International Space Station. We will try to maneuver away from it, and also try to shelter, the crew as much as possible. But sometimes you're relying on good fortune that you don't get hit by some.。
