Mercury

Essay specific features

 

Issue:

Science

 

Written by:

Timothy M

 

Date added:

May 11, 2012

 

Level:

 

Grade:

B

 

No of pages / words:

2 / 448

 

Was viewed:

719 times

 

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Essay content:

Mercury's magnetic field is one-hundred times weaker than that of Earth's. Mercury has the shortest revolution of all the planets in our solar system and revolves around the sun in about eighty-eight days. Radar observations of the planet show that its period of rotation is 58.7 days, or two-thirds of its period of revolution...
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That means that Mercury has one and one-half days in it's year. Mercury doesn't have an atmosphere, but it does have a thin layer of helium. The helium is actually solar wind that is trapped by Mercury's weak gravity. Scientists think that collisions with protoplanets early in the history of the solar system may have stripped away lighter materials, making Mercury a very dense planet with an iron core extending outwards 4/5 of the way to the surface...
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