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Formation and evolution of the Solar System - Wikipedia
List of Solar System objects by size - Wikipedia
Minor planet - Wikipedia
Earth - Wikipedia
Solar System - Polcompball Anarchy Wiki
List of missions to the outer planets - Wikipedia
List of Solar System objects by size - Wikipedia
Solar System Facts: Interesting Facts about Our Solar System
Solar System - Wikipedia
List of natural satellites - Wikipedia
Classifying Objects: Its Purpose and Role in Science and Education - or, in Planetary Science, Is Pluto a Planet? - Vatican Observatory