Planets

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Across
  1. 3. Known most for its rings
  2. 7. A waterworld, with two-thirds of it covered by ocean
  3. 8. Having clouds made of hydrogen sulfide
Down
  1. 1. A cold, desert-like place covered in dust
  2. 2. The most massive planet in our solar system
  3. 4. Known for supersonic strong winds
  4. 5. Zipping around the sun in only 88 days
  5. 6. Earth's twin in size