Monday, May 10, 2010

The moon

Earths moons is the fifth largest the solar system. Its quarter of the size of earth but weights only an eighteenth as much. It is an important part of our solar system here are some facts about the moon.
About five billon years ago, a huge cloud of dust and gas in space started to shrink under the pull of its own gravity. In the centre the cloud was squeezed so tightly that its presser heated it. That began to burn and formed the sun. Further out dust clouds formed into moons and planets formed. After a big splash according to this theory a mars sized planet smashed into earth, and the massive impact impact threw massive amounts of rock into space. This material formed into a rind of circulating debris witch came to form our moon.
The moon is quarter of the size of earth it has dark patches that are called seas where volcanic lava once flowed witch you can see with binoculars, you can also see hundreds of craters where meteorites have slammed into the surface. The reason that there are more of them on the far side is because the moon takes exactly the same time to turn around on its own axis as it does to orbit the earth, so one side is always turned away from us.
The moons effect on earth causes us to have lighter nights and a change of weather. When the moon plunges into the sun in about 1million years, for the moon travels 1km a year into the sun. We will experience darker nights and a change of weather.
The moon has a big impact on earth, it is 384,000 km away from the moon it phases depend on how much of the lit up part we can see from earth like full moon and quarter moon.