Across
- 2. galaxy stars are all young
- 6. gas and dust
- 9. collapsed core
- 10. stream of charged particles
- 14. Rasins spread apart
- 15. start of expansion
- 16. apparent shift
- 17. cooler areas on surface
Down
- 1. warm rises cool sinks
- 3. hottest layer of sun
- 4. 9 trillion miles year in light traviling distance
- 5. squessing atoms together
- 7. distand galaxy center
- 8. sequence that fuse hydrogen and helium
- 11. galaxies move away
- 12. galaxy Stars all over
- 13. loop of gas
- 15. collapsed neutron star
- 17. galaxy with old stars in center