Across
- 2. Space distance unit (9).
- 4. Space rock orbiting the sun (8).
- 5. Universe as an ordered whole (6).
- 9. Planet with rings (6).
- 11. Our home planet (5).
- 13. Largest planet (7).
- 15. Star nursery (6).
- 17. Between stars (12).
- 18. Tail of ice and dust (5).
Down
- 1. HOLE Object with intense gravity (10).
- 3. Instrument to see faraway stars (9).
- 6. Hunter in the sky (5).
- 7. Famous spacecraft exploring space (7).
- 8. Power source of stars (6).
- 10. Bright, distant object powered by a black hole (6).
- 12. Space telescope (6).
- 14. Milky Way, for example (6).
- 16. Force pulling us down (7).