The Earth’s satellite moon is considered to be formed due to a major collision. This collision is called ‘The Big Splat’. After some time after the formation of the Earth, a part of the size of 1 to 3 times the size of Mars was broken and scattered into space. This substance, which was separated from the site of collision, started moving around in the earth’s orbit and became the present day moon. The occurrence of this phenomenon of origin of the moon has been estimated to have taken place approximately 4.44 billion years ago.
