Universe by nina

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Across
  1. 3. groups of stars that create shapes
  2. 4. a group of stars or galaxies
  3. 7. a collection of millions to billions of stars
  4. 9. a small dim dense star
  5. 10. a large reddish star late in its life cycle
  6. 11. a big hot ball of fire in the center of the universe
  7. 13. a object that produces very high energy
  8. 15. the distance a star travels in a year
Down
  1. 1. light cant leave this
  2. 2. the outside layer of the sun
  3. 5. a huge bright explosion
  4. 6. the planet that we live on
  5. 8. an American astronomer
  6. 12. everything that exists in space and in time
  7. 14. huge sphere of hot gas