CuriosityStream Documentaries

CuriosityStream Documentaries

Search for Our Sun's Lost Planet (2020x10)


Air date: Mar 07, 2020

Is it possible that there is a hidden planet within our own solar system? New evidence suggests that the fabled Planet X, or Planet 9, may indeed exist… but where? Meet the teams racing to discover and redefine our planetary neighborhood.

  • Premiered: May 2007
  • Episodes: 223
  • Followers: 2
  • Running
  • CuriosityStream
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