The planets

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Across
  1. 2. the biggest planet
  2. 4. the ringed planet
  3. 7. takes 365 days to revolve around the sun
  4. 8. The hottest planet
Down
  1. 1. the second hottest planet
  2. 3. the red planet
  3. 5. the coldest planet
  4. 6. the rolling planet