History Of Mercury

 Mercury is the closest planet to the Sun. Many people think Pluto is the smallest planet in the solar system, but Mercury is actually the smallest planet in the solar system. Pluto is considered a Dwarf Planet. Mercury was discoved back in ancient times. Nasa sent a spacecraft called Mariner 10 to orbit and survey the suface of Mercury. They found that Mercury has the most craters than any other planet. Mercuy also has the second most dense body in the solar system. Earth has the most dense.

                            Information From http://www.aerospaceguide.net/planet/planetmercury.html

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