Across
- 2. Rockey object
- 6. Ice and rock.
- 8. Natural Satellite
- 11. Astronaut garments
- 15. Celestial study
- 16. Gas cloud
- 18. Ringed giant
- 19. obscuring of the light from one celestial body
- 22. Orbiting Habitant
- 23. Luminous sphere.
- 24. Universe study
- 26. Star explosion
- 27. Moon exploration vehicle
- 29. Life-supporting planet
- 30. Invisible substance.
- 31. No weight condition
Down
- 1. Free fall condition
- 3. Gravitational region
- 4. Space Station, Research laboratory
- 5. Life essential
- 7. Gas Layer
- 9. Propulsion vehicle
- 10. Red planet
- 11. sun's domain
- 12. A space travel vehicle
- 13. Star system.
- 14. Attractive force
- 17. Outside solar system
- 18. Light energy
- 20. Dwarf planet
- 21. Orbiting object
- 25. Extravehicular activity
- 28. Totality of existence