为什么宇宙可以超光速膨胀？#科普 #百科密码 #宇宙文明 #space #地球 #宇宙 #太空探索 #光速
Synopsis
我们如何得知宇宙在膨胀？这要归功于一个被称为红移的现象。当天文学家观测遥远星系时，发现这些星系的光被拉长为红色频率， ...
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