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外星人在哪里？
6,695,320 views
|
斯蒂芬 · 韦伯 |
TED2018
• April 2018
Read transcript
宇宙非常古老，大得不可思议，并且有数万亿颗行星——那么外星人都在哪里呢？天文学家斯蒂芬 · 韦伯对此有一个解释：我们在宇宙中是独一无二的。在这个让人大开眼界的演讲中，他讲述了一颗行星为了容纳外星文明而需要清除的巨大障碍——并且说明了我们可能是宇宙中绝无仅有的美丽之处。 “宇宙的沉默是在呐喊：'我们是幸运的生物'。”韦伯说。
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