Crossword: Galaxies

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Across
  1. 4. most galaxies have a _______ black holes in their centers
  2. 5. a type of spiral galaxy that has a noticed bar in the center
  3. 8. the study of the universe
  4. 10. A type of galaxy that contains old red stars
  5. 11. a type of galaxy that has no symmetry
  6. 12. The _______-year is the distance that light travels in one year
  7. 14. We have to use computers to simulate a galaxy _______
Down
  1. 1. _______ a group of billion of stars
  2. 2. right _______ - longitude
  3. 3. _______- latitude
  4. 6. the apparent difference in position of an object
  5. 7. A type of galaxy that contains young blue stars
  6. 8. _______ variable stars are used to measure stars that have a distance of over 2,00 light years
  7. 9. a type of galaxy with very bright cores
  8. 13. Edwin _______ measured the expansion of the universe