The Universe

1234567891011121314151617181920
Across
  1. 2. Edwin Hubble studied around ___ galaxies.
  2. 5. Who proposed the Big Bang Theory?
  3. 7. Its about 150,000 light years away from us.
  4. 8. Edwin Hubble used ___ inch optical telescope.
  5. 11. Modern astronomers describe our galaxy as a ___.
  6. 12. Edwin classified galaxies into how many types?
  7. 13. Star systems composed of billion of stars.
  8. 14. The interstellar spaces are filled with __.
  9. 15. Universe having a definite beginning also has a definite __.
  10. 16. Have flat,circular or ellipsaidal shapes remebling the central disk of spiral galaxies.
  11. 17. Looks like thin lenses or whirlpools.
  12. 18. What is the acronym word for the small magellanic clouds?
  13. 20. Harlow Shapley is an __ astronomer?
Down
  1. 1. Lack definite shape or symmetry.
  2. 3. Early astronomers called such a cluster ___.
  3. 4. The universe is composed stars, cloud of dust and ___.
  4. 6. Who provided accurate scientific concept of Milky Way Galaxy?
  5. 9. The Distance of the universe is called ___.
  6. 10. What does Nebulae mean?
  7. 19. A very hot and dense fireballs called ___.