Across
- 5. name of the programme that sent men on the Moon
- 6. person who travels into space from Russia
- 7. something that you have succeeded in doing
- 8. arrive on the ground
- 11. fact of not being affected by gravity
- 12. border between the known and unknown
Down
- 1. person who is the first to go somewhere
- 2. very modern, advanced
- 3. dangerous and involving risk
- 4. worth a lot of money
- 9. American government organization
- 10. vehicle travelling regularly between two places