TOK Crossword

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Across
  1. 4. state of matter postulated to exist inside a neutron star
  2. 6. elementary particle that carries messages between quarks
  3. 9. explosion caused by the collision of two neutron stars
  4. 13. "point of no return" for black holes
  5. 17. closest star to us other than the sun
  6. 18. acronym for the remnants of the first light that could travel through the universe?
Down
  1. 1. which telescope shows stars with four points?
  2. 2. type of matter/energy attributed to the universe's expansion
  3. 3. star that we're orbiting around
  4. 4. innermost point of a black hole
  5. 5. at what length does our knowledge of gravity and space time stop working?
  6. 7. proposed quantum that would carry gravitational field
  7. 8. what belt is home to pluto?
  8. 10. type of star that appears to flicker from earth
  9. 11. type of model of the solar system that shows the sun orbiting through the milky way
  10. 12. state of the universe once all the stars have died
  11. 14. biggest planet in our solar system
  12. 15. what cloud characterizes the outer shell of the solar system?
  13. 16. which telescope shows stars with six points?