QB54 .C28 1967
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Other worlds than ours / |
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QB54 .C33
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Interstellar communication : a collection of reprints and original contributions. |
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QB54 .C37 1997
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Carl Sagan's universe / |
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QB54 .C562 2011
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Civilizations beyond earth : extraterrestrial life and society / |
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QB54 .C562 2011eb
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Civilizations beyond earth : extraterrestrial life and society / |
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QB54 .C564 1999
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Aliens : can we make contact with extraterrestrial intelligence? / |
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QB54 .C566 2000
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Life on other worlds and how to find it / |
2 |
QB54 .C64 2002eb
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What does a martian look like? : the science of extraterrestrial life / |
1 |
QB54 .C648 2007
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The limits of organic life in planetary systems / |
1 |
QB54 .C648 2007eb
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The limits of organic life in planetary systems / |
2 |
QB54 .C65 1979
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Communication with extraterrestrial intelligence |
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QB54 .C66
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Communication with extraterrestrial intelligence (CETI) / |
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QB54 .C686 2013
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Life Beyond Earth : the Search for Habitable Worlds in the Universe. |
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QB54 .C76 1986
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The extraterrestrial life debate, 1750-1900 : the idea of a plurality of worlds from Kant to Lowell / |
1 |
QB54 .C764 2008
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The extraterrestrial life debate, antiquity to 1915 : a source book / |
3 |
QB54 .D365 2000
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The extraterrestrial encyclopedia : an alphabetical reference to all life in the universe / |
2 |
QB54 .D38 1995
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Are we alone? : philosophical implications of the discovery of extraterrestrial life / |
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QB54 .D3913 1991
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The cosmic water hole / |
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QB54 .D4695 2018
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Astrobiology, discovery, and societal impact / |
2 |
QB54 .D47 1996
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The biological universe : the twentieth-century extraterrestrial life debate and the limits of science / |
1 |