Across
- 1. brain
- 4. chest
- 5. welcome
- 9. space station
- 10. think
- 11. suspended animation
- 12. get there
- 14. show
- 16. orbit
- 17. journey
- 18. look after
- 19. ignore
- 21. astronaut
Down
- 1. by then
- 2. pick up
- 3. Earth
- 6. look like
- 7. enough
- 8. tomorrow
- 13. report
- 15. whole
- 20. travellers