12 Episodes

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Season 4

Episodes

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  • 12 episodes
    12 episodes
    • s4e12Extreme Energy
      November 10, 2009
    • s4e11Science Fiction, Science Fact
      November 3, 2009
    • s4e10Pulsars & Quasars
      October 27, 2009
    • s4e9Liquid Universe
      October 20, 2009
    • s4e8Space Wars
      October 6, 2009
    • s4e7The Search for Cosmic Clusters
      September 29, 2009
    • s4e610 Ways to Destroy the Earth
      September 22, 2009
    • s4e5The Hunt For Ringed Planets
      September 15, 2009
    • s4e4Biggest Blasts
      September 8, 2009
    • s4e3It Fell From Space
      September 1, 2009
    • s4e2The Day the Moon Was Gone
      August 25, 2009
    • s4e1Death Stars
      August 18, 2009