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Watch Veritasium Season 10 Online

  • 8.5/10
  • COUNTRIES: Australia,Canada,Norway,United States of America
  • Subtitles: English

A planet has been predicted to orbit the sun with a period of 10,000 years, a mass 5x that of Earth on a highly elliptical and inclined orbit. What evidence supports the existence of such a strange object at the edge of our solar system?