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GreenmansGod

New Model of the Early Universe

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New Model of the Early Universe

By Jeanna Bryner

Senior Writer

posted: 17 February 2009

09:06 am ET

New computer simulations reveal how the early universe would have appeared 500 million years after the theoretical Big Bang.

According to the standard Big Bang model, the universe was born about 13.7 billion years ago in a burst of inflation, growing from something smaller than the size of an electron to about golf-ball size within a fraction of a second. In its early stages, the universe was flooded with energy, which congealed into particles and the lighter atoms. Over time, as the cosmos continued to expand on a vastly greater scale, these atoms clumped together into stars and galaxies.

"We wanted to see what the very early universe [and] galaxies looked like at an early time, very shortly after the Big Bang," said Carlton Baugh, a Royal Society Research Fellow in the Department of Physics at Durham University.

The results will hopefully shed light not only on galaxy formation but also on the mysterious stuff called dark matter that makes up about 85 percent of the universe's total matter and is thought to act as scaffolding on which galaxies matured.

"We are effectively looking back in time and by doing so we hope to learn how galaxies like our own were made and to understand more about dark matter," said lead study author Alvaro Orsi of Durham University's Institute for Computational Cosmology. "The presence of dark matter is the key to building galaxies – without dark matter we wouldn't be here today."

The researchers used a computer simulation of dark matter and added to it normal, or illuminated, matter. The resulting images show what the universe might have looked like at 590 million years after the Big Bang, 1 billion years after the Big Bang, 1.9 billion years after the Big Bang, and today.

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Hi Darkwind;

I found this interesting, Never can have enough theorys about how things really were, Its just quite simply mind boggling to think it out,

Regards;

TFF

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