The universe

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Across
  1. 4. the galaxy we are in
  2. 7. when something goes in reverse motion
  3. 9. a pattern of stars to organize something in the sky
  4. 10. a dark blemish on the surface of the sun
  5. 11. the distance that light travels in one year
Down
  1. 1. the thing that holds many solar systems
  2. 2. two stars that are so close they are orbiting each other
  3. 3. in the center of the galaxy
  4. 5. a star ending its life cycle with a massive explosion
  5. 6. the birth of a new star
  6. 8. path among the stars traced throughout the year
  7. 9. a ¨dirty snowball¨