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Xploration Awesome Planet: Season 4

4x08 Pennsylvania
TV-PG

  • 2017-01-01T00:00:00Z
  • 20m
  • English
  • Documentary, Family, Children
In this episode, Philippe travels to Pennsylvania to explore a hidden wonder beneath the Appalachian Mountains and see how researchers at Carnegie Mellon University are using cutting-edge science to measure air quality in Pittsburgh.
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