Solar system

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Across
  1. 2. is the largest object in the asteroid belt
  2. 4. the largest planet in our solar system
  3. 6. is a dusty,cold, desert world with a very thin atmosphere
  4. 9. the third largest diameter in our solar system
  5. 11. our home planet
  6. 13. the smallest planet in our solar system
Down
  1. 1. most distant planet in our solar system
  2. 3. earth’s closest planetary neighbor
  3. 5. second brightest object in the Kuiper Belt
  4. 7. was long considered our solar system’s 9th planet
  5. 8. was nicknamed Santa by one discovery team
  6. 10. is the second largest planet in our solar system
  7. 12. helped trigger a debate in the scientific community