Cosmology Crossword

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Across
  1. 4. The universe will spread apart and accelerate
  2. 5. time when no heavy elements were created yet and everything was dark
  3. 6. The ______ theories show ideas that there isn't just one universe
  4. 8. The science that studies the origin and the development of the universe.
  5. 9. The observable universe is 46 ______ light years in diameter
  6. 10. The universe will spread apart and decelerate
  7. 11. The ______ universe theory states that every choice we don't make leads to a different universe
  8. 13. Famous German scientist
  9. 17. Theoretical material that speeds up the expansion of the universe
  10. 18. The __________ is 4.6 billion years old
  11. 19. The universe will collapse on itself
  12. 20. Holds galaxies together
Down
  1. 1. "Fabric" of the universe
  2. 2. Satellite that detects the Big Bang's origins
  3. 3. Heat wave sent out by Big Bang
  4. 4. Beginning of the universe
  5. 7. An object infinitely dense and infinitely small
  6. 12. The ______ universe theory states that there are an infinite amount of copies of us
  7. 14. The history from the Big Bang to the Present
  8. 15. The ________ is 186,282 miles per second
  9. 16. Distance light travels in a year