旅行者1号，距离地球有216亿公里，是如何把信号传回地球的？
Synopsis
美国曾在1977年9月5号发射过旅行者1号，大约距离地球有216亿公里，而在飞行的过程当中，也一直向地球传输着各种信息的数据 ...
![功率20瓦，距離211億公里，旅行者1號的信息是如何傳回地球的？，[科學探索]](https://i.ytimg.com/vi/HnFPwfSagvc/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAgLCL8CAVvecwnqTkaW9K_WmUYvg)
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