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Across
  1. 6. Genre that's home to aliens and spaceships
  2. 7. first dog in space
  3. 10. animal crossing character who loves the night sky
  4. 13. this 90s anime
  5. 15. Star at the center of our solar system
  6. 16. OfCongress call number system
  7. 17. These totally exist
  8. 19. "to infinity and ____"
  9. 20. George Lucas created this series of films
Down
  1. 1. this planet has amazing rings
  2. 2. this killed off the dinosaurs
  3. 3. Once a planet, now only a dwarf planet
  4. 4. girl of the 21st century
  5. 5. This started it all
  6. 6. "Live long and prosper"
  7. 8. first man on the moon
  8. 9. cloud of gas in outer space
  9. 11. a group of stars that appear to form shapes in the sky
  10. 12. new mexico crash site
  11. 14. This mythology system is source of planetary names
  12. 18. national aeronautics and space administration, for short