Across
- 4. Horizons, Pluto mission
- 6. Mars rover
- 8. Shuttle disaster in 1986
- 13. US space station
- 14. Private spaceflight company
- 15. First artificial satellite
- 16. Tereshkova, first woman in space
- 19. Explored Martian surface
- 20. Famous aborted moon mission
Down
- 1. NASA's two-man missions
- 2. First to reach the moon
- 3. Jupiter probe
- 5. Space probe launched in 1977
- 7. First man in space
- 9. Space telescope launched in 1990
- 10. First human spaceflight
- 11. NASA's first manned program
- 12. Pathfinder, Mars lander
- 17. International Space Station
- 18. First manned moon landing