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Astronomers discover that a mysterious rock on the edge of the solar system has a diameter of more than 2,400 meters.



  1. Astronomers discover that a mysterious rock on the edge of the solar system has a diameter of more than 2,400 meters.
  2. Japanese astronomers discover new celestial bodies in the Kuiper belt – Science Exploration cnBeta
  3. View the full story in Google News

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