Space Crossword Puzzle

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Across
  1. 3. The center of our solar system
  2. 4. The red planet
  3. 6. The number of dwarf planets in our solar system
  4. 8. The farthest planet from the sun
  5. 9. The smallest dwarf planet
  6. 12. The largest moon in our solar system
Down
  1. 1. The planet with the most moons
  2. 2. The coldest planet
  3. 5. The hottest planet
  4. 7. The smallest planet
  5. 10. The number of planets in our solar system
  6. 11. The only planet with life