Space

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Across
  1. 3. arms that spiral outward off of spiral galaxies
  2. 4. ball of glowing hot gas
  3. 9. egg shaped
  4. 10. group of stars
  5. 11. galaxy that is not spiral or eliptical
  6. 12. the study of the universe
  7. 14. a large red star collapsing on itself
  8. 15. system stars that are grouped together
Down
  1. 1. all of the star sytems, galaxies, gas, and dust
  2. 2. our galaxy
  3. 5. the widley accepted theory
  4. 6. appear as a rotating disk of stars and dust
  5. 7. two stars orbit eachother
  6. 8. this is so dense that light can't escape
  7. 13. clusters groups of hundreds or thousands of stars