All

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Across
  1. 2. prize
  2. 6. swimming
  3. 8. film
  4. 10. decide
  5. 11. second
  6. 12. clean
  7. 17. earth
  8. 18. another
  9. 19. yesterday
  10. 21. excited
  11. 22. first
  12. 23. cough
  13. 25. dream
  14. 26. want
Down
  1. 1. spaceship
  2. 3. pass
  3. 4. visit
  4. 5. friendly
  5. 7. quickly
  6. 9. moon
  7. 11. slowly
  8. 13. everywhere
  9. 14. third
  10. 15. meter
  11. 16. careful
  12. 20. astronaut
  13. 24. suddenly