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Five Essential Things to Do in Space: Scientific American
Publisher: Scientific American Author: George Musser, Scientific American Audio lenght: 23 min.
Planetary scientists have laid out five goals for exploring the solar system: monitor the Earth's climate, defend against asteroids, seek out new life, explain the genesis of planets, and leave the solar system. Learn more in this article, "To the Moon and Beyond", from the October 2007 edition of Scientific American.
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