Across
- 1. ringed giant — Saturn
- 9. cloud — Nebula
- 13. frontier — Space
- 14. wanderer — Comet
- 17. vacuum — Void
- 18. star in the sky — Sirius
- 19. of light unit — Parsec
Down
- 2. navigation tool — Astrolabe
- 3. workplace — Space
- 4. wind particles — Plasma
- 5. expanse — Cosmos
- 6. satellite — Moon
- 7. between Mars and Jupiter — Asteroids
- 8. locale — Mars
- 10. traveler’s suit — EVA
- 11. planet — Mars
- 12. leap site — Moon
- 15. nursery — Nebula
- 16. twin — Venus
- 20. energy dominant force — Cosmos