Space themed Crossword

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