Astronomy

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Across
  1. 3. the earth in the center of the universe
  2. 5. a device to see the stars
  3. 6. a person who studies up
  4. 7. space as a whole
  5. 10. the study of something up
  6. 11. the moon around the earth
Down
  1. 1. the sun in the center of the universe
  2. 2. a hole on the moon
  3. 4. when an object travels around another object
  4. 6. an imaginary line through the earth
  5. 8. A planets spin on its axis
  6. 9. the force that pulls us toward the earth