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為什麼我們還找不到外星生命存在的證據?
2,953,624 views |
Chris Anderson |
TED-Ed
• March 2012
Read transcript
以動畫的方式呈現著名的 "費米謬(悖)論": 宇宙中有這麼多的行星, 其中不少比地球古老, 為什麼我們還找不到外星生命存在的證據? 這個問題有各種可能的答案, 有些可能很有趣, 有些則讓人警醒, 而有些則令人充滿了希望.
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