Across
- 3. the race to space
- 4. a rocket that uses multiple stages
- 5. name for the russian space program
- 8. first human to conduct a space walk
- 11. First soft landing on the moon
- 12. first intercontinental missile
- 13. Soviet's first liquid-fueled rocket
- 14. highly secret space station program
- 16. The use of rockets
- 17. Earth's first artificial satellite
- 19. first space capsule for human flight
Down
- 1. First Modular space station
- 2. artificial satellite
- 6. a series of communication satellites
- 7. first spacecraft to land on venus
- 8. a person trained for space
- 9. First human in space
- 10. poor dog that died for SSSR
- 15. first space rover
- 18. mars probe program