space

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Across
  1. 1. a crestial body moving in an elliptal
  2. 3. having or representing the sun as the centre
  3. 7. 24hours
  4. 8. the distance light travels in a vacuum
  5. 9. a unit of astronomical distance eqivalent to the distance that light travels
Down
  1. 2. the collection of eight planets and there moons in orbit around the sun
  2. 4. having or representing the earth as the centre
  3. 5. an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
  4. 6. plane the plane passing though the equator of the earth
  5. 10. 365 days