Solar System Crossword puzzle

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Across
  1. 1. planet with the brightest rings
  2. 6. a planet or star
  3. 7. furthest planet from the sun
  4. 9. the star closest to earth
  5. 12. the
  6. 13. It takes Earth 365 days to __ the sun
  7. 14. Neil Armstrong was the first person to walk
  8. 15. our sun and the objects that orbit around it
  9. 18. third planet from the sun; only planet
  10. 19. to turn on an axis
  11. 21. warmest planet; cloudy planet
  12. 22. the force that pulls you towards the center
Down
  1. 2. planet that rotates on its side
  2. 3. Saturn, Jupiter, Uranus and Neptune have
  3. 4. instrument used for seeing stars and planets
  4. 5. a space traveler
  5. 6. number of stars in our solar system
  6. 8. dwarf planet with two moons
  7. 10. have walked on
  8. 11. large planet known for the Great Red Spot
  9. 16. around them
  10. 17. planet closest to the sun
  11. 20. the red planet; humans have sent robots