Ch 23 Earth-Space

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