人眼能看見的最遠天體，是254萬光年外的仙女座星系｜#宇宙 #科普 #天文
Synopsis
在一個沒有光汙染的冬夜，只要你走到足夠黑暗的地方，午夜之後仰望東方的天空，你就能看到人類肉眼可見的最遙遠天體──仙女 ...
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