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  • Alan Stern Quotes   6
  • We're just learning that a lot of planets are small planets, and we didn't know that before, fact is, in planetary science, objects such as Pluto and the other dwarf planets in the Kuiper Belt are considered planets and called planets in everyday discourse in scientific meetings.
  • 4 years ago



    Tags : Alan Stern Quotes , Science Quotes , Dwarves Quotes