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Mercury
Beginning of essay
is the closest planet to the sun. It’s average distance from
the sun is approximately fifty-eight million km and it’s diameter is 4875 km,
making it the second smallest planet in our solar system. It’s volume and mass
are about 1/18 that of the earth and it’s average density is approximately equ ....
Middle of essay
....it’s closeness to the
sun. The surface temperature on the sunlit side is about 430 degrees Celsius,
while the dark side may reach temperatures of -170 degrees Celsius..
Mercury was a difficult planet to study before the invention of the
telescope. Even then, you could only see Mercury in the morning and evening.
Then the Mariner 10 was built in the 1970’s to go observe Mercury. The Mariner
10 spacecraft passed Mercury twice in 1974 and once in 1975 and it took hundreds
of pictures of the pl.... |
| Number of words: 447 |
Approximate pages: 2 |
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