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