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Across
  1. 3. made of metal and rock also has an irregular shape
  2. 4. the biggest planet
  3. 7. the hottest planet
  4. 8. a glowing ball made of gas
  5. 10. the closest planet to the sun
Down
  1. 1. one of Saturn's moons
  2. 2. has a tail of ice
  3. 5. made from debris and orbits outer planets
  4. 6. the farthest planet from the sun
  5. 9. the closest star to earth