Nathan+Michl--->+Big+bang+theory

--The Big Bang Theory-- Saying that the universe came into existence at a definate moment in time around 13 million years ago, all describes the Big Bang Theory. This theory also says that it came in the form of a super hot & dense fireball of energetic radiation. Before this, the earth was believed to be unchanging. But it 1917 when Alber Einstein developed his General Theory of Relativity, this all changed. He realized gravity would attract all the galaxies towards one another if the "Steady State Model" were true. Einstein did not believe it, and later said that it was the biggest mistake of his career. In 1920, Edwin Hubble discovered that the universe was indeed expanding, by measuring light from distant galaxies. In 1927, Georges Lamitre (Belgian Astronomer) created a version of the Big Bang Theory, which is what we know it as today.

This model says that the universe "emerged from a singulrity, at time zero." At the time, the universe was 1,000 billion degrees Kelvin. After all the extreme conditions were over with, everything settled and more particles were produced than anti-particles. When the universe cooled, some particles when away and some stayed, producing stable matter as we know it today.

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