Mercury
Mercury is the smallest planet in the solar system and
also closest to the Sun.Similar to the Moon, Mercury has many craters and
also has no natural satellites and the atmosphere
Of Mercury's surface temperature ranged between
90 to 700 Kelvin (-180 to 430 degrees Celsius).
With a diameter of 4879 km at the equator,
Mercury is a metal composed of 70% and 30% silicate and bear
density of 5.43 g/cm3 density only slightly below the Earth.
However, if the effect of gravity is calculated from the pressure ofthe Mercury
more dense than the Earth was compressed to the density of
Mercury, the Earth is only 5.3 g/cm3 and 4.4 g/cm3.
http://id.wikipedia.org/wiki/Merkurius
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