Why do We have a Moon?

Think about it. Without the moon there wouldn’t be songs like, ‘When the moon hits your eye’ or movies like, ‘Moonstruck’. Theory on how the moon got where it is, is that there may have been a large object that struck the earth about 4 1/2 billion years ago. When this happened, there was a collision that caused material from both the earth and the object that eventully formed the moon.