How Big is Our Planet Earth? Mind-Blowing Comparison!

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Earth is the third planet from the Sun, the fifth-largest (Mean radius: 6371 km, circumference: 40075 km, Surface area: 510,072,000 km2) and the densest (Volume: 1.08321 × 1012 km3, Mass: 5.9736 × 1024 kg, Mean density: 5.515 g/cm3) of the eight planets in the Solar System. It is also the largest of the Solar System’s four terrestrial planets.  More...