Galaxy's

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Across
  1. 4. endless darkness.
  2. 5. we live on a _______.
  3. 7. sorted into 3 groups.
  4. 8. our solar system.
Down
  1. 1. galaxy shaped like a football.
  2. 2. galaxy with no shape.
  3. 3. galaxy with arms.
  4. 6. center of our solar system.