Planets and space

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Across
  1. 5. Tilted on its side
  2. 7. The planet we live on
  3. 8. what the planets go around
  4. 9. Make it twice!
  5. 14. Planet closest to the sun
  6. 15. big blue gas giant
  7. 16. Close to the planet Neptune
  8. 17. Begins with q and is in the kupier belt.
  9. 18. In the Kuiper belt
  10. 19. The dwarf planet after neptune
  11. 21. Has rings
Down
  1. 1. The second planet in the solar system
  2. 2. an astroid with a big fire tail
  3. 3. The biggest Planet
  4. 4. a big nothing that even light cannot escape
  5. 6. In the outermost of the solar system
  6. 10. In the asteroid belt
  7. 11. big boom of a sun dying
  8. 12. Behind Neptune its numbers are 225088
  9. 13. a big hunk of rock floating in space
  10. 20. Egg shaped dwarf planet