Exploration, for January 4, 2005 - 2:00pm
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Robert Ehrlich, author of Eight Preposterous Propositions: From the Genetics of Homosexuality to the Benefits of Global Warming. Also, the top 10 space travel stories of 2004, including the future of space tourism; Cassini's mission to Saturn; The future of Star Wars; extra-solar planets, black holes, asteroids, and the possibility of discovering life on other planets.