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Book Review

Nature 421, 114-115 (9 January 2003) | doi:10.1038/421114a

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Aliens unlimited

Lawrence M. Krauss1

Jack Cohen and Ian Stewart are both well-established authors of popular science books, as well as being research scientists (in biology and mathematics, respectively) and aficionados of science fiction. Their new book focuses on the various possibilities of extraterrestrial life (normally associated with the emerging field of astrobiology), and on the relationship between science and science fiction.