A new theory that has been proposed may deflate the commonly-accepted origin of the universe, namely the Big Bang theory, in that it never happened at all. This new theory also implies that the universe is infinite in age, and may continue to exist forever.

As is widely known, the Big Bang theory posits that all of the energy (and thus matter) in the universe was once compressed into an extremely dense singularity, of which exploded 13.8 billion years ago. This idea of this singularity stems from equations derived from Einstein’s theory of general relativity, that shows that all matter occupied one point in space.
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Ahmed Farag Ali at Benha University and coauthor Saurya Das at the University of Lethbridge in Alberta, Canada, have shown in a paper published in Physics Letters B that the Big Bang may not have happened and the universe may actually be infinite. It the suggestions in this paper prove to be true, then mankind’s fundamental understanding of the universe is going to change profoundly. It has been believed for a long time that the universe began 13.8 billion years ago with a ‘singularity’, a tiny, ultra dense mass that exploded with tremendous force, expanding into the universe we see around us today. 
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The unfathomable mystery of how this Universe was brought forth into being has preoccupied the mind of Man since he became cognisant of his own existence. Latterly, Science has been able to provide the likely cosmic nuts and bolts of the process, with the most widely accepted concept being known as the "Big Bang" theory.
Though the name implies a huge detonation, the "Big Bang" was more of an expansion than an explosion, an expansion that is still continuing today, but recent research suggests that if this type of event had indeed created the Universe then, theoretically, it should not exist at all.
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At 13.7 billion years old, the universe is inconceivably ancient. As new stars are born every day, its cosmic inhabitants are constantly changing, but scientists have now discovered the oldest star existing in space.

The old timer was identified by a team of astronomers from The Australian National University, who believe it formed shortly after the" Big Bang" that spawned the cosmos 13.7 billion years ago.

The newly-observed star, christened SMSS J031300.36-670839.3,has just topped the age of the current record holder, HD 140283 or "The Methuselah Star," which has been dated to be 13.2 billion years old.
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