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What will it take to make humanity a spacefaring species? The usual: good reasons and good planning. Christopher Wanjek explores the practical motivations for striking out into the far reaches of the solar system and the realities of the challenge. And he introduces us to the scientists and entrepreneurs who are already tackling that challenge.

Astronautics and civilization. --- Interplanetary voyages. --- Outer space --- Exploration.

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Medical misconceptions. --- Complementary Therapies --- Medicine --- Deception --- medical myths --- medical misconceptions