Universe

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Across
  1. 2. a small rocky body orbiting the sun
  2. 7. a large body of matter in orbit around the sun or a star
  3. 8. a strong, hard magnetic silvery-grey metal
  4. 9. eight of them in our solar system
  5. 11. system of billions of stars
  6. 12. a large luminous point in the sky
Down
  1. 1. Created universe
  2. 3. a hypothesized ancient planet in the early Solar System
  3. 4. the curved path of a celestial object or spacecraft round a star, planet, or moon
  4. 5. the natural satellite of the earth
  5. 6. a celestial object consisting of a nucleus of ice and dust
  6. 10. cloud of gas and dust
  7. 11. the force that attracts a body towards the centre of the earth