Edwin Hubble and Albert Einstein with the Discovery of an Expanding Universe and the Beginning of the Universe

Edwin Hubble and Albert Einstein with the Discovery of an Expanding Universe and the Beginning of the Universe 
Edwin Hubble was a very good athlete in fact he was awarded with a scholarship to Oxford University in England. There he studied law. When he returned home he decided he did not want to be a lawyer and decided to become an astronomer. Edwin Hubble was an excellent astronomer despite his personality quarks. 
Edwin Hubble discovered that Andromeda was 2 million light years away from us and meant that there were others galaxies themselves.
Hubble’s discovery of the size of the universe and the multitude of the stars, changes our thought of the cosmos. This discovery made Edwin a great and well known astronomer. 
Edwin Hubble continued to study many distant galaxies made an even greater discovery than his last. 
For 5 years, he studied the movement of the galaxies, their whereabouts and their speed. In doing this he discovered the redshift and blueshift. Discovering the redshift and blueshift he made up his law which was that the distance of a galaxy is proportional to its velocity; for example to go twice as far out the velocity will be twice as big. This is called Hubble’s law.
Making all those discoveries helped him make his best discovery which is that the world expanding. If the universe was expanding that could mean that there was a beginning. Though the thought of an expanding universe was knew to everyone; it was thought that the universe was fixed. 
Albert Einstein believed in a fixed universe as well but his original equation of general relativity predicted a change in cosmos. Einstein did not want to believe the theory so he added in a cosmological constant to his equation to make the idea of a fixed universe true. 
In 1931, Albert Einstein met Edwin Hubble and admitted that he was incorrect. He confessed that he added in the cosmological constant to make his equation support his theory not Edwin’s theory. 
After Albert’s confession, the theory of an expanding universe was believed.

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