astronomy

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Across
  1. 4. entirety of space
  2. 6. a celestial body that orbits stars
  3. 8. planets rotating around each other
  4. 9. billions of stars
  5. 10. belief that the earth is in the center of the earth
Down
  1. 1. the motion of a celestial body
  2. 2. amount of matter in an object
  3. 3. belief the sun id the center of the earth
  4. 5. system collection of planets
  5. 7. the spinning of a celestial body