Galaxies

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Across
  1. 2. Whose research proved the universe is_
  2. 3. Edwin hubble, a famous __
  3. 9. A galaxy with an ellipsodial shape and a smooth, nearly featureless image
  4. 13. Most galaxies are names for their designation in a_
  5. 15. DSO__ is a perfect colliding galaxy
  6. 16. Has a central bar-shaped structure composed of stars
  7. 18. Time it takes for the sun to orbit around the center of the universe.
Down
  1. 1. A rotating disc with spiral arms that curve out from a dense spiral region
  2. 4. The__ is a barred galaxy.
  3. 5. The large and small __ are well known irregular galaxies
  4. 6. This has helped survey galaxies and understand the universe's evolution
  5. 7. Hubble has revealed there is an estimated__ galaxies in the universe
  6. 8. The_ galaxy is a spiral galaxy
  7. 10. A galaxy is a group of__ and other space stuff
  8. 11. The closest galaxy to the Milky Way
  9. 12. The Milky Way is__ years old
  10. 14. A catchall for any galaxy that cannot be categorized using Hubble Classification Scheme
  11. 17. The sun's orbit around the center of the universe
  12. 19. One of the largest known elliptical galaxies