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Across
  1. 3. smallest planet
  2. 8. float around
  3. 9. third closest planet to the sun.
  4. 10. our star.
Down
  1. 1. coldest planet
  2. 2. hottest planet
  3. 4. you might need this
  4. 5. planet?
  5. 6. you can see them at night.
  6. 7. biggest planet