放大直径22万光仙女座星系你会看到什么？最少约1万亿颗恒星，如果你在夜晚看向仙女座时，会发现一团暗淡的亮斑#探索 #科普 #宇宙知识 #天文 #planet #黑洞 #银河系#宇宙探索
Synopsis
如果登上海王星的你想回来一趟可没那么容易，海王星距离太阳相当远，总有45亿公里，差不多是日地距离的30倍。海王星绕行太阳 ...
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