7 Episodes

Season 7

Episodes

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  • 7 episodes
    7 episodes
    • s7e7When Space Changed History
      June 17, 2012
    • s7e6Ride the Comet
      June 10, 2012
    • s7e5Microscopic Universe
      June 3, 2012
    • s7e4Deep Freeze
      May 20, 2012
    • s7e3Our Place In The Milky Way
      May 13, 2012
    • s7e2Alien Sounds
      May 6, 2012
    • s7e1How Big, How Far, How Fast
      April 29, 2012