Across
- 1. Law that states the farther away a galaxy is, the faster it is moving away from us.
- 4. Galaxy that is a rotating disk of stars and dust.
- 5. Glowing sphere of gas that produces light.
- 8. Cloud of dust and gas.
- 11. Stage in a star's development where the inner core contracts while the outer layers expand.
- 12. Shift of wavelengths of light towards the red end of the spectrum.
- 14. Everything that exists.
- 15. Study of the universe.
- 16. Galaxy that is egg shaped.
- 17. Scientist who studies the universe.
Down
- 2. It all started with a ___ _____.
- 3. An enormous star that is near the end of its life.
- 6. Galaxy that is relatively small.
- 7. A group of stars that appear to form a pattern.
- 9. A very large group of stars, held together by gravity.
- 10. Galaxy that isn't spiral or elliptical.
- 13. Colors of light that are visible.