Space Crossword

1234567891011121314151617181920212223
Across
  1. 1. Line where the Earth appears to meet the sky
  2. 4. Hot sphere of gas where nuclear fusion occurs
  3. 6. Relating to objects in space
  4. 9. Curved path of one object around another
  5. 10. Icy body that develops a tail when near the Sun
  6. 11. Type of radiation observed by the James Webb Space Telescope
  7. 15. Natural satellite that orbits a planet
  8. 17. Huge collection of stars, gas and dust
  9. 18. Large spherical object that orbits a star
  10. 19. Meteoroid that survives passage through the atmosphere and reaches Earth
  11. 20. Process where smaller atomic nuclei combine to form larger nuclei
  12. 22. WEBB Infrared space telescope launched in 2021
  13. 23. Abbreviation for Astronomical Unit
Down
  1. 1. Space telescope launched into orbit in 1990
  2. 2. Small planetary body such as Pluto
  3. 3. Rocky object left over from the formation of the Solar System
  4. 5. Type of fusion that powers stars
  5. 6. Recognisable pattern of stars in the night sky
  6. 7. Scientific study of celestial objects
  7. 8. Instrument used to observe distant celestial objects
  8. 12. SYSTEM The Sun and all objects that orbit it
  9. 13. Distance travelled by light in one year
  10. 14. Nearest major galaxy to the Milky Way
  11. 16. Small piece of rock or metal travelling through space
  12. 21. Cloud of gas and dust in space