Across
- 1. hole-collapsed
- 4. cooler areas on surface
- 6. center of a distant galaxy
- 8. effect- tells us galaxies are moving away
- 11. bang- start of expantion
- 13. sequence- fusion of h20 and he
- 15. dough theroy-the raisins spread apart as the bread raises
- 16. galaxy-no definen state
- 17. hottest layer of atmosphere
- 18. wars rises, cool sinks
- 19. star- collapsed core
Down
- 2. year- a trillion miles
- 3. wind- stream of charged particles
- 5. shift
- 7. of gas
- 9. galaxy-old middle
- 10. of gas and dust
- 12. galaxy- all old stars
- 14. squeezing atoms together