Space theme

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Across
  1. 4. Approaching object's hue
  2. 6. Exoplanet-hunting mission
  3. 7. Bright galactic nucleus
  4. 9. Stellar final phase
  5. 10. Invisible cosmic mass
  6. 12. Universe study expert
  7. 15. Well known asterism
  8. 17. Black hole boundary
  9. 19. Expanding universe force
  10. 20. Cloud of gas and dust
  11. 21. Distance measurement unit
  12. 22. High-energy particles
  13. 24. Many universe theory
  14. 26. Rocky space object
  15. 27. Star in formation
  16. 29. Star study expert
  17. 31. Fabric of universe
  18. 33. Star pattern group
Down
  1. 1. Space telescope name
  2. 2. Galaxy's light stretch
  3. 3. Exploding star event
  4. 4. Gravity's strong pull
  5. 5. Spinning neutron star
  6. 8. Stars' gravitational group
  7. 11. Cosmic matter accumulation
  8. 12. Icy celestial traveler
  9. 13. Cosmic attractive force
  10. 14. Black hole center
  11. 16. Spiral celestial body
  12. 18. Small celestial debris
  13. 23. Swollen aging star
  14. 25. Another distance unit
  15. 28. Theoretical space shortcut
  16. 30. Universe's origin moment
  17. 32. Planet beyond solar