Facts of Eris

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Across
  1. 4. Mike _______, astronomer who discovered Eris
  2. 5. Eris's discovery challenged the definition of a ______
  3. 7. Eris was discovered in 2005
  4. 8. Eris's surface is believed to be mostly ______
  5. 9. Eris is part of our ______ ______
  6. 12. Another dwarf planet in the Kuiper Belt
  7. 13. Region where Eris is located
Down
  1. 1. Eris has a highly elliptical ______
  2. 2. Eris is named after a ______ goddess
  3. 3. Eris was initially nicknamed "Xena"
  4. 5. Eris led to the reclassification of this celestial body
  5. 6. Dwarf planet similar in size to Pluto
  6. 7. Moon of Eris
  7. 10. Eris is part of this distant solar system region
  8. 11. Eris's ______ is slightly smaller than Pluto's