Monday, October 29, 2012

Mercury





Mercury
    Mercury is the planet nearest to the Sun . We can observe this planet by using an astronomical telescope . Mercury does not have air or living things on it .
    The diameter of Mercury is 4879km . Mercury takes 88 days to make one revolution around the Sun and 59 days to make one complete rotation about its own axis .
    Because Mercury has no atmosphere , its highest temperature is 427°C and the lowest is -173°C .
    The surface of Mercury is full of craters much like the surface of the Moon . Many big craters are named after famous artists like Beethoven, Mozart and others .

5 comments:

Unknown said...

Thanks for sharing...

Unknown said...

Thanks for sharing...

Unknown said...

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Anonymous said...

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keep it up

Chai Tan Ning(D20112053788) said...

Thank you.