Across
- 3. Start of expansion
- 4. Cloud of gas and dust
- 7. Stream of charged particles Prominence Loop of gas
- 9. Hottest layer of atmosphere
- 10. Warm rises, cool sinks
- 11. Young stars in the arms, old stars in the
- 13. galaxy Odd one out
- 14. Oval shaped, only old stars
- 15. Fusion of H2 and He
- 18. in a year
- 19. Collapsed core of a high mass star
Down
- 1. Bright center of a distant galaxy
- 2. Apparent shift
- 3. Raisins spread out as the dough rises
- 5. Tells us galaxies are moving away
- 6. Collapsed neutron star, no light escapes
- 8. 9 trillion miles, The distance that light
- 12. Loop of gas
- 16. Cooler areas on surface
- 17. Squeezing atoms together