Across
- 2. propel
- 5. base
- 7. settle
- 8. spaceship
- 10. touch down
- 13. objective
- 14. The Moon is one
- 16. discover
- 18. border
- 19. our planet
- 20. spacecraft
Down
- 1. celestial body
- 3. unwelcoming
- 4. opposite of dangerous
- 6. describes a place where you can live
- 9. try
- 11. space explorer
- 12. competition
- 15. traveller
- 17. explorer