让我们开启时间穿梭，前往到138亿年前，去目睹宇宙的演化历程！【宇宙探索未解之迷】
Synopsis
宇宙，浩瀚无垠，拥有无数的行星，恒星以及星系，这些物质到底从何而来，一直是人类苦苦追寻的答案。 根据目前的主流理论推测 ...
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