Astrobiology (december 2005) |
Astrobiology (december 2005) |
Guest_AlexBlackwell_* |
Dec 27 2005, 05:50 PM
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The latest issue of the journal Astrobiology (Volume 5, Number 6, December 2005) is now available online.
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Guest_AlexBlackwell_* |
Jan 18 2006, 02:14 AM
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#2
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QUOTE (AlexBlackwell @ Dec 27 2005, 05:50 PM) The latest issue of the journal Astrobiology (Volume 5, Number 6, December 2005) is now available online. For those of you without a subscription, note that the publisher is now offering free online access to the entire issue. |
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Jan 26 2006, 10:11 PM
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#3
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Ward’s new book Life as We Do Not Know It: The NASA Search for (and Synthesis of) Alien Life ... maintains Ward’s skepticism about finding intelligent aliens.
However, the book builds on the less-noticed flip side of Ward and Brownlee’s “Rare Earth Hypothesis” -- that simple life may be fairly common. In this view, microbial life may evolve rather readily from non-life, and can sustain itself in a wide range of conditions, but only rarely does a planet or moon remain habitable long enough for complex life to develop (and such life is far more fragile than microbes). Finding extraterrestrial life, for Ward, thus becomes a question of hunting alien microbes, and he regards it as quite plausible that these will be found within our solar system. Life as We Do Not Know It provides an intriguing discussion of possible varieties of alien organisms, and a world-by-world survey of the prospects for finding them in our own cosmic backyard. Ward also proposes some changes to standard scientific thinking about how to define and classify life, and he makes a case for sending humans, not just robotic probes, to search for life on other worlds -- in particular Mars and Saturn’s moon Titan. http://www.tcsdaily.com/article.aspx?id=012206B -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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