2002年8月1日

1分钟阅读

为什么外星人还没来电

德雷克方程中用于估计外星智慧的文明寿命被大大夸大了

作者：迈克尔·舍默

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Michael Shermer is publisher of Skeptic magazine (www.skeptic.com) and a Presidential Fellow at Chapman University. His new book is Heavens on Earth: The Scientific Search for the Afterlife, Immortality, and Utopia (Henry Holt, 2018).

More by Michael Shermer
大众科学 Magazine Vol 287 Issue 2This article was originally published with the title “Why ET Hasn't Called” in 大众科学 Magazine Vol. 287 No. 2 ()
doi:10.1038/scientificamerican082002-2BlqFw4RFYkT1qfNeGz9qh
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