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Science: Astronomy: Extraterrestrial_Life:
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- The Planetary Society - A nonprofit organization devoted to the exploration of the solar system and the search for extraterrestrial life..
- The Rise and Fall of Star Faring Civilizations in Our Own Galaxy - Speculation, based on the Drake Equation, regarding the existence and composition of alien civilizations..
- Search for ET! - Interactive Flash tutorial exploring the possibility of and search for life on other worlds..
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