Universe

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Across
  1. 5. a kind of black hole that is emitting high energy in the form of a single ray
  2. 7. a star that is extremely dense and made up of neutrons
  3. 8. the explosion which led to the formation of our
  4. 12. the closest star to our solar system
  5. 13. contains 99.98% mass of our solar system
  6. 14. the belt of asteroids at the edge of our solar system
  7. 17. the only known planet to have life
  8. 18. a very dense celestial object formed when a star dies and has a singularity
  9. 19. the largest black hole
  10. 21. the closest galaxy to us
  11. 22. largest planet discovered to have rings
  12. 23. the force which keeps everything together
  13. 24. the closest solar system to ours
Down
  1. 1. a cloud surrounding our solar system
  2. 2. the largest planet in our solar system
  3. 3. the largest unit of measurement in space
  4. 4. the coldest planet in our solar system
  5. 6. the brightest explosion in the universe
  6. 9. a moon in our solar system larger than mercury
  7. 10. the temperature can go up to 482' celsius
  8. 11. the largest star
  9. 12. the largest dwarf planet in our solar system
  10. 15. the galaxy in which we live
  11. 16. a planet that is not in our solar system
  12. 20. the first satellite ever to cross the Solar System