Across
- 1. the theory on how the universe began
- 5. this star has a diameter of about 10 miles
- 7. colors of the visible spectrum
- 8. how much light the star actually gives off
- 11. giant cloud of dust and gas
- 13. theory that universe will continue racing outward until everything dies
- 14. this type of galaxy has no dust or gas
- 16. color of coolest star
- 17. name of the galaxy we live in
- 18. this size star is 1000x the diameter of the sun
- 19. this type of galaxy has a bulge in the middle and arms
- 20. color of hottest star
- 21. this type of galaxy doesn't have a set shape
Down
- 2. a unit of measurement that represents the average distance from the Earth to the sun
- 3. light waves that show a shift and serve as evidence that the universe is expanding
- 4. energy is spread evenly throughout universe, this is evidence of the big bang theory
- 6. what about the universe is repeated over and over?
- 9. 96-99% of a stars mass
- 10. theory the universe will come back together again and have repeating big bangs
- 12. how much light the star appears to give off
- 15. year a unit of measurement used outside of the solar system