And junk begets junk, as each collision creates more fragments-a phenomenon known as the Kessler syndrome, after Donald Kessler, an American physicist who postulated it in the 1970s.
碎片生碎片，因为每次碰撞产生更多的碎片——这就形成一种叫“凯斯勒综合症”的现象，也就是美国物理学家唐纳德·凯斯勒在上世纪七十年代创立的一种假说。
The process could also avoid what is known as 'Kessler Syndrome', where there is too much space junk flying around Earth for it to be safe to fly out, leaving us trapped on our own planet.
同时还可以避免所谓的“凯斯勒综合征”，也就是说有太过的废旧太空碎片环绕在地球周围，这威胁到了飞行安全，使得我们的星球被自身所创造的垃圾所困。
The process could also avoid what is known as 'Kessler Syndrome', where there is too much space junk flying around Earth for it to be safe to fly out, leaving us trapped on our own planet.
同时还可以避免所谓的“凯斯勒综合征”，也就是说有太过的废旧太空碎片环绕在地球周围，这威胁到了飞行安全，使得我们的星球被自身所创造的垃圾所困。
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