稀土
Rare earth
Peter Douglas Ward · 初版 2000 年
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“尽管人们普遍认为复杂生命在宇宙数以百亿计的恒星和星系中十分普遍、甚至广泛存在，但天体生物学家Peter D. Ward和Donald Brownlee却认为，高级生命实际上可能非常罕见，甚至可能是独一无二的。”“Ward和Brownlee对潜在的假设提出质疑，带领我们展开一场搜寻生命之旅，其足迹从大洋深处的火山温泉一直延伸到木卫二Europa冰冷的面庞。在此过程中我们了解到，尽管微生物生命在整个宇宙中可能远比此前认为的更加普遍，但
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也许可以看彼得·沃德（Peter Ward）和唐纳德·布朗利（Donald Brownlee）写的《珍稀地球》（Rare Earth）。http://www.amazon.com/Rare-Earth-Complex-Uncommon-Universe/d...
Perhaps "Rare Earth" by Peter Ward and Donald Brownlee. http://www.amazon.com/Rare-Earth-Complex-Uncommon-Universe/d...
《珍稀地球》（Rare Earth）这本书对这个话题探讨得很透彻。他们得出的结论是：复杂的多细胞生命在宇宙中很可能极其罕见。但简单的微生物生命可能比我们想象的要普遍得多。……
The book Rare Earth covers this topic throughly. The conclusion they come to is that complex, multicellular life is likely extremely rare in the universe. But simple, microbial life may be much more common than we think.…
如果你真对这个感兴趣，去读读《珍稀地球》（Rare Earth）吧，http://www.amazon.com/Rare-Earth-Complex-Uncommon-Universe/d...，它梳理了极其庞杂的天文、地质和生物学信息。书中结论认为，因为有太多的因素……
If you are really interested in this, read "Rare Earth", http://www.amazon.com/Rare-Earth-Complex-Uncommon-Universe/d..., it goes through an incredible mass of astronomical, geological, and biological information. It concludes that, because so many things…
我正在读彼得·D·沃德和唐纳德·布朗利写的《珍稀地球：为什么复杂生命在宇宙中并不常见》（Rare Earth: Why Complex Life is Uncommon in the Universe），里面在寻找地外生命的背景下也探讨了寒武纪大爆发。这或许……
I'm reading Rare Earth: Why Complex Life is Uncommon in the Universe by Peter D. Ward and Donald Brownlee, which talks about the Cambrian explosion as well, in the context of the search for extraterrestrial life. It's perhaps…
沃德和布朗利写的《珍稀地球：为什么复杂生命在宇宙中并不常见》（Rare Earth: Why Complex Life is Uncommon in the Universe）是关于这个主题的绝佳读物。
Rare Earth: Why Complex Life is Uncommon in the Universe by Ward and Brownlee is a fantastic read on the subject.
彼得·D·沃德和唐纳德·布朗利写的《珍稀地球》（Rare Earth）是一本探讨了影响我们环境的诸多因素的好书。虽然“外太空”的生命形式确实可能大相径庭，但我觉得有时外星生命乐观派（ET-optimists）只是拿这个来敷衍搪塞，忽略了两个耐人寻味的细节：……
A good book that explores some of these factors for our environment is Rare Earth by Peter D. Ward and Donald Brownlee. While it's true that life "out there" may look vastly different, I feel like sometimes ET-optimists use that as a hand-wavy defense that overlooks two curious details:…