Known Universe

Season 2 Episode 3

Alien Contact

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Aired Sunday 5:00 PM Apr 15, 2010 on National Geographic
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Are we alone? It's an age-old question that was relatively "taboo" in mainstream science until the mid-1990s, when astronomers found planets outside our solar system. Now, Known Universe joins the hunt for alien life as scientists search for planets with similar characteristics to Earth's. Journey to find planets that may support life and discover new space-based technologies that aid in the search for advanced alien civilizations.moreless
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