Across
- 3. everything in space
- 5. an object of ice and dust with a tail of gas
- 8. silly
- 10. strange
- 11. light that shines from a star
- 12. our planet
- 14. respond
- 15. lacking sense
- 17. cannot be accomplished
- 18. go away
- 19. flicker of light
Down
- 1. a body in the sky that orbits the stars
- 2. inappropriate
- 4. not being used
- 6. light that shines from the moon
- 7. have a different opinion
- 8. continue
- 9. against the law
- 13. true
- 16. study