Space Crossword!

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Across
  1. 3. Some are natural, maybe even moons?
  2. 5. An organization that find out all about space
  3. 8. We used this to get to the moon in '69
  4. 10. Flying objects that aren't dentified
  5. 11. Star Some people make wishes on them
  6. 12. Some creature out of this world
  7. 15. Something heading to Earth, but leaves a mark
  8. 16. A big ball of gas and fire! Keeps us alive
  9. 17. We have a big one in the centre of our Solar System
  10. 19. A big dusty tail and look awesome at night,very old
Down
  1. 1. The biggest planet in our Solar System
  2. 2. Asteroids between Mars and Jupiter
  3. 4. Something heading to Earth burning
  4. 6. Spots on the sun that isn't good for communications
  5. 7. Earth has one.. Saturn has 60
  6. 9. We have 8 in our Solar system
  7. 13. Big rocks that have a famous "belt"
  8. 14. A big part of the whole world, some say it never ends
  9. 18. Nova A Nova, nope! But bigger
  10. 20. A planet with 7 billion living organisms