外星人存在吗？人类为什么看不到外星文明？李永乐老师讲费米悖论 - Vidude

5 Views· 15 August 2022

外星人存在吗？人类为什么看不到外星文明？李永乐老师讲费米悖论

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最近有一则新闻刷爆到互联网
说是加拿大的科学家发现了快速射电暴FRB的重复信号
有人就说这就是外星人向我们招手的
有小朋友问我说外星人到底存在不存在
今天我们就来讨论一个有关外星人的话题
叫做费米悖论
详见视频……

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（英语）字幕制作者 : 俞映瑶（Yu Yingyao）

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