the universe

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Across
  1. 2. hole : It's gravitational field is so intense that no electromagnetic radiation can escape
  2. 4. Way : our galaxy
  3. 6. : the study of space the stars
  4. 7. : the explosion of a star
  5. 8. : it has a tail of gas and dust
  6. 11. : it makes distant objects closer and larger
  7. 13. matter : a form of matter invisible to electromagnetic radiation
  8. 14. bang : what started it all
  9. 18. : king of sea
  10. 20. : 5th planet from the sun
  11. 21. : heavens belt with 12 signs
  12. 22. : the most distant and most luminous objects in the universe.
  13. 24. : The center of our solar system
  14. 26. : a space capsule or vehicle to go into orbit
  15. 27. : a large system of stars held together by mutual gravitation
  16. 28. : National Aeronautics and Space Administration
Down
  1. 1. : a force that pulls
  2. 3. : a group of stars
  3. 5. : planet number seven
  4. 7. : moon
  5. 9. : it exists mainly between mars and jupiter
  6. 10. : a planet's curved path
  7. 12. : home
  8. 15. : Goddess of love
  9. 16. : beings from another planet
  10. 17. : It is used in thermometers
  11. 19. hole : a space tunnel
  12. 23. : beautiful rings
  13. 25. : red planet