Out of This World Crossword

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Across
  1. 3. Shower of falling material outside, usually not involving water
  2. 6. Organization in charge of space exploration
  3. 8. Life forms from other planets
  4. 9. Space explorers
  5. 12. Popular tv show and theory for how the solar system came to be
  6. 13. Michael Jackson dance move
  7. 14. Conspiracy theories about landing on the _____
  8. 17. Space material and one of Santa's reindeer
  9. 19. Glowing balls of light
Down
  1. 1. Warmest planet in our solar system
  2. 2. Neil ______; first man on the moon
  3. 4. Saturn has lots of these
  4. 5. What you look through to see stars and planets
  5. 7. No longer a planet
  6. 10. The center of our solar system
  7. 11. Items orbiting the sun
  8. 13. Our galaxy
  9. 15. Fly to the moon
  10. 16. When the moon passes between the earth and sun
  11. 18. Keeps us grounded