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A ninth planet discovered in our solar system?

  • Émission
    Le 19h30
  • 21 January 2016
  • David Ehrenreich
    • Sciences, UNIGE
Légende

A mysterious object has been spotted by American astronomers in our solar system. It could be a ninth planet, it would be ten times the mass of Earth.

  • #ESPACE 361 Interventions
  • #ASTRONOMY 335 Interventions

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