Planets

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Across
  1. 4. the closest planet to the sun
  2. 5. the only planet with life
  3. 6. a planet with beautiful rings
  4. 8. nicknamed the red planet
Down
  1. 1. try to guess the last one
  2. 2. the biggest planet
  3. 3. the hottest planet
  4. 7. a blue planet