space

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Across
  1. 4. the natural attraction between physical bodies
  2. 5. the name of our galaxy
  3. 8. a group of stars with a definite pattern or arrangement
  4. 10. a scientist who studies stars and planets
Down
  1. 1. the distance light travels in one year
  2. 2. a very small planet
  3. 3. technical instrument used to see distant objects such as stars
  4. 6. the red planet
  5. 7. our natural satellite
  6. 9. the planet with a rings