Guide to the Big Bang

According to scientists, the Big Bang was a major event that resulted in the development of the entire universe. While the concept is merely a cosmological theory, there is much evidence to support the postulation. Observations from astronomers show scientific evidence generally referred to as the Big Bang model. This theory states that the universe began its life as a dense and ultra-hot object that contained all of the matter and potential energy in existence. In a brief moment, the object expanded rapidly and began to cool, continuing to drift apart over the eons. Using astronomical measurements, scientists have pinpointed this event as occurring roughly 13.7 billion years ago.

This guide will outline the origins and challenges presented by this scientific model of the origin of the universe. When first proposed by Georges Lemaitre in 1927, it was met with controversy that still continues to this day. However, astronomers and cosmologists continue to regard this as the most likely scenario to explain the physical laws of everything.

Universe Expansion. (Supplied by Gnixon at Wikimedia Commons; Public Domain; http://upload.wikimedia.org/wikipedia/commons/3/37/Universe_expansion2.png)