Beginning of Essay
There was a period in history when the beginning of the world in which we live in was a expressed through legends and myths, now, through the use of increasingly advanced scientific equipment we can see that the universe is more vast and complex than ever imaginab ....

Middle of Essay
.... completely static. The expansion of the universe was discovered in 1929 when Edwin Hubble discovered that every galaxy in the universe was moving away from each other, this meant that the universe was expanding. Hubble found the movement of the galaxies by using a phenomenon known as the Doppler effect. This effect caused bodies moving away from an observer to have a "red-shifted" spectrum (the light spectrum of the body had been shifted closer to red) and bodies moving towards an observer to be "blue-shifted" (Hawking, 1988) The expansion was traced backwards through time to discover that all the galaxies had originated from the same point. It ....