The Universe

1234567891011121314151617
Across
  1. 4. Type of galaxy that does not have a distinct shape
  2. 6. The name of our home cluster
  3. 7. How galaxies are classified
  4. 9. The study of the universe - its nature, origin, and evolution
  5. 12. The 'T' in the acronym HST
  6. 13. Makes up 75% of the universe, force that opposes gravity
  7. 15. The name of our home supercluster
  8. 16. Makes up 21% of the universe, does not emit light but does have gravity
Down
  1. 1. Law used to calculate the rate at which the universe is expanding
  2. 2. Type of galaxy subdivided into normal and barred
  3. 3. Theory that proposes that the universe began as a single point and has been expanding ever since
  4. 5. Background Radiation Energy left over from the beginning of the universe
  5. 8. Type of galaxy not flattened into a disk and without spiral arms
  6. 10. What is found at the center of our galaxy
  7. 11. How old our universe is proposed to be
  8. 14. The arm of the Milky Way the Sun is located on
  9. 17. Way The galaxy we live in