Alll about universe

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Across
  1. 3. The planet we live on
  2. 4. The coldest planet on the Earth
  3. 6. The largest planet in the solar system
  4. 7. The smallest plant in the solar system
Down
  1. 1. This planet has ring made up of rock and ice
  2. 2. The hottest planet in the solar system
  3. 5. The planet farthest from the Sun