Planets

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Across
  1. 2. Sixth planet from the sun
  2. 4. Second planet from the sun
  3. 5. Largest planet
  4. 7. Smallest planet
Down
  1. 1. First discovered planet
  2. 3. Farthest planet from the sun
  3. 6. Only planet that contains life
  4. 7. Named after the Roman god of war