spacex星链卫星被指占用过多地球轨道空间马斯克站出来辩解
龙飞船(crew dragon)以及星链卫星(starlink satellite),开始为他的"
spacex starlink satellites contribute to sky pollution?
人造卫星人造卫星(artificial satellite):环绕地球在空间轨道上运行
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