Across
- 4. Comet probe
- 5. - US space agency
- 8. Soviet lunar probes
- 11. Saturn probe
- 17. - First animal in space
- 18. Mars rover
- 20. Soviet Venus/Halley's Comet probes
- 24. US space probes
- 25. Space telescope
- 26. Mercury probe
- 27. Soviet Venus probes
- 28. Pluto probe.
- 29. Russian spacecraft
Down
- 1. Saturn's largest moon
- 2. US planetary probes
- 3. Meteor shower
- 6. - US moon landing program
- 7. - First man in space
- 9. - First man in space
- 10. US space program
- 12. Private space company
- 13. US lunar probes
- 14. US space probes
- 15. Soviet/Russian space station
- 16. First US space station
- 19. - Soviet spacecraft
- 21. - Earth's natural satellite
- 22. - First artificial satellite
- 23. Mars rover
- 26. Fourth planet from the sun