spacex starlink satellites contribute to sky pollution?
satellitetracker–人造卫星观测指南实时追踪国际空间站星链starlink
星链卫星的轨道高度只有几百公里. 图片来源:starlink 官网
starlink-satellites-1280x706-1.jpg
spacex isn't slowing down amid coronavirus as starlink satellite
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