Across
- 8. Spacecraft for moon landing
- 10. First US space station
- 11. Orbiting laboratory
- 13. Space probe exploring beyond the solar system
- 14. Outermost layer of atmosphere
- 16. Space shuttle
- 18. Space shuttle
- 20. Theory of relativity
- 22. Space telescope
- 23. Italian astronomer
- 24. Space shuttle
- 25. Alter a planet for life
Down
- 1. Study of life in space
- 2. Laws of gravity and motion
- 3. Heliocentric model proposer
- 4. Mars rover
- 5. Suitable for life
- 6. NASA's moon mission program
- 7. Space shuttle
- 9. Study of space
- 12. Electrically charged atmosphere layer
- 15. Theoretical physicist
- 17. First space shuttle
- 19. Laws of planetary motion
- 21. Planet outside our solar system