Across
- 3. further collapsed neutron star no light escapes
- 5. bright centers of distant galaxies
- 7. start of expansion
- 8. fusion of H and He
- 9. old stars in the center new stars in arms
- 12. apparent shift
- 14. as bread dough rises raisins spread
- 16. loop of gas
- 17. full of gas dust and stars
- 18. collapsed core of a high mass star
Down
- 1. tells us galaxies are spreading apart
- 2. hottest layer of the sun
- 4. hot rises cool sinks
- 6. stream of charged particles
- 10. 6 trillion miles
- 11. full of old stars
- 13. squeezing atoms together
- 15. cloud of gas and dust
- 19. cooler spots on the sun