Galaxies

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Across
  1. 2. a collection of less than 50 galaxies
  2. 6. makes up 27% of the universe
  3. 8. most common type of galaxy
  4. 10. Our Galaxy
  5. 11. made laws about orbital speed vs distance
  6. 12. stars with 2-3% metals
Down
  1. 1. found at the center of the galaxy
  2. 3. the Milky Way galaxy
  3. 4. a cluster of clusters
  4. 5. galaxy with no recognizable shape
  5. 7. billions of stars held together by gravity
  6. 9. made laws about gravitational attraction