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[问与答] 不懂就问：星链卫星对轨道染污的担忧

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刚看已经有 6300 多颗星链卫星在近地轨道（ 550KM ）飞行， 这么多东西对轨道不会产生污染吗？ 如果坏了就一直在那个位置转圈圈吗，能被回收吗？ 我们应该也能看到它们的反光吧？ 前一段我们试射的 DF31AG ，怎么没撞上它们呀？是数量还不够多吗 以后我们上天一颗卫星是不是还要计算避免与他们相撞啊？

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