Across
- 1. NASA's moon mission program.
- 3. The main module in Apollo missions.
- 5. Path of a spacecraft around a planet.
- 7. Soviet spacecraft still in use today.
- 9. First man on the moon.
- 12. U.S. president who set moon landing goal.
- 14. First man in space.
- 16. Rocket family used for Apollo missions.
- 17. First dog in space.
- 18. Soviet spacecraft for first human spaceflight.
Down
- 2. Soviet moon exploration program.
- 4. First U.S. manned space program.
- 6. Vehicle used on the moon.
- 7. First artificial satellite.
- 8. Soviet astronaut.
- 9. Second man on the moon.
- 10. Term for walking on the moon.
- 11. NASA program between Mercury and Apollo.
- 13. Lunar module that landed on the moon.
- 15. U.S. space agency.