Across
- 3. collaped n0teron star
- 5. start expand
- 7. rasen spread apart bred rise
- 11. loop of gass
- 12. cloud gas y dust
- 14. apperent shift
- 15. h2 to he
- 18. shapleseseses
- 19. charged particle
Down
- 1. warm rise cool sink
- 2. collapsed star
- 4. 9 trillion miles
- 6. hot layer atmosphere
- 8. galexy moving
- 9. spot on sun
- 10. sqeeze atoms together
- 13. circal
- 16. center of galaxy
- 17. spiral