宇宙直径长达930亿光年？科学家认为：实际比这还要更大！【太空科学站】
Synopsis
说起宇宙，我们都会充满无限的遐想，并且深知宇宙的浩瀚，随着人类在天文学上的不断进步，对宇宙越来越了解，于是便发现， ...
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