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Mercury


Mercury, the closest planet to the sun at 35,983,095 miles (57,909,175 km), is a hot world that whizzes around at the crazy speed of nearly 112,000 mph (180,000 kph), fastest in the solar system. Its radius is about 1,516.0 miles (2,439.7 km). Also, it possesses an extremely high temperature, a scorching 840 degrees F (450 degrees C), what with being so close to the sun and all.

Mercury's Atmosphere

 

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