If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Stephen Webb 作者

Springer

译者

2015-5-20 出版日期

434 页数

USD 29.99 价格

Paperback

丛书系列

9783319132358 图书编码

If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? 在线电子书图书标签: 外星文明小说天文物理天文学天才荐书 Q天文

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If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

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If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? 在线电子书著者简介

Since gaining a BSc in physics from the University of Bristol and a PhD in theoretical physics from the University of Manchester, Stephen Webb has worked in a variety of universities in the UK. He is a regular contributor to the Yearbook of Astronomy series and has published an undergraduate textbook on distance determination in astronomy and cosmology as well as several popular science books. His interest in the Fermi paradox combines lifelong interests in both science and science fiction.

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If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY? 在线电子书图书描述

Given the fact that there are perhaps 400 billion stars in our Galaxy alone, and perhaps 400 billion galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormity of the numbers almost demands that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials?

In this second, significantly revised and expanded edition of his widely popular book, Webb discusses in detail the (for now!) 75 most cogent and intriguing solutions to Fermi's famous paradox: If the numbers strongly point to the existence of extraterrestrial civilizations, why have we found no evidence of them?

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