The Celestial Bodies

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Across
  1. 1. The name of our galaxy.
  2. 4. Balls of gas burning light years away.
  3. 5. Our only natural satellite.
  4. 7. It's composed of 8 planets and a star.
  5. 8. Fragments of rock orbiting in the Solar System.
  6. 9. A collection of billions of stars.
Down
  1. 1. Fragments of rock which burn as it moves into our atmosphere.
  2. 2. The name of the closest galaxy to ours.
  3. 3. A collection of stars which draw an imaginary picture.
  4. 6. Any meteor that makes it to the ground.