What is the Smallest Planet in the Solar System

August 3, 2010 by  
Filed under Geology

Mercury is the smallest planet of the Solar System. This planet was discovered in the 17th century by the scientist Galileo. Previously, the Solar System was populated by nine planets and Pluto was considered the smallest one. However, since the exclusion of Pluto from the Solar System by the International Astronomical Union, Mercury, with a […]

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