Galaxies and Cosmology

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Across
  1. 3. Large flattened area around the center of a spiral galaxy.
  2. 4. The name of our galaxy.
  3. 5. Bulkier and brighter center area of a spiral galaxy.
  4. 8. Type of galaxy with no distinguishable features or specific shape. Most are small in size.
  5. 11. - Theory that the universe somehow wraps itself in all directions.
  6. 12. The most common type of galaxy. Have a wide and flat rotating disk with a central bulge.
  7. 13. Type of galaxy with a circular or oval shape. Some are nearly spherical, while others are more elongated.
Down
  1. 1. The idea that all the galaxies came from a singularity that released all time, space and matter.
  2. 2. - Part of the universe that we can actually see. Some 46 billion light years in all directions.
  3. 3. Sections in the observable universe where galaxies are more closely concentrated.
  4. 6. - Type of galaxy with a stretched galactic bulge that connect to two large arms on the galactic disk.
  5. 7. Much greater for galaxies further away as noted by Hubble.
  6. 9. Theory that the universe expands forever in all directions to infinity.
  7. 10. - Theory that proposes that the universe will end by collapsing in on itself back to a singularity.