Planets in the Milky Way.

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Across
  1. 1. Closest to the Sun.
  2. 4. The largest planet in the solar system.
  3. 7. Famous for its rings.
Down
  1. 1. The 'red' planet.
  2. 2. Rotates at a 90 degree angle.
  3. 3. The densest planet.
  4. 5. Sixth largest planet in the solar system.
  5. 6. Where living organisms exist.