THE END OF THE UNIVERSE crossword

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Across
  1. 4. theory that describes the beginning of the universe
  2. 5. theory that the universe will end because of lack of energy
  3. 7. the last thing to exist
  4. 8. what will happen to black holes towards the end
  5. 9. what is emitted from decayed protons
  6. 13. the force accelerating the universe’s expansion
  7. 16. what is outside of the solar system
  8. 17. part of the nucleus of an atom
  9. 18. what evaporates matter
Down
  1. 1. occur after white dwarfs
  2. 2. end of universe theory that says the universe will fold back in on itself
  3. 3. energy emitted by black holes
  4. 4. theory that dictates that the universe will accelerate until it tears apart atoms
  5. 6. what will come to the universe
  6. 10. form after small stars’ death
  7. 11. everything everywhere that we’re discussing
  8. 12. massive hydrogen spheres
  9. 14. huge cluster of stars
  10. 15. part of the atom outside of the nucleus
  11. 19. something black holes will do eventually