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Date Posted: 00:13:09 01/08/04 Thu
Author: BV
Subject: Big Bang shot dead by Aussies?

An Australian-led research team which was refused use of an American telescope has discovered a string of galaxies, challenging existing theories about how the universe evolved.

The team used telescopes in Chile and at the Siding Spring Observatory in western NSW to detect an enormous string of galaxies about 10.8 billion light-years away.

Australian National University astronomer Paul Francis, who led the research team, said existing scientific theories cannot explain how the galaxy string could have existed 10.8 billion years ago.

"We have detected 37 galaxies and one quasar in the string, but it probably contains many thousands of galaxies," Dr Francis said in a statement.

"The existence of this galaxy string will send astrophysicists around the world back to the drawing board to re-examine theories of the formation of the universe."

Dr Francis' team was refused the use of a telescope in the United States because the observations they wanted to carry out were considered to be technically impossible by many American astronomers.

The team have since presented their findings to the American Astronomical Society.

Dr Francis said computer simulations of the early universe had been unable to reproduce galaxy strings as large as the one his team found.

"There simply hasn't been enough time since the Big Bang for it to form structures this colossal," he said.

The team believes the string probably contains thousands of galaxies, and work is now under way to map it.

The string of galaxies itself is thought to be 300 million light years long. A light year is about 9.5 trillion kilometres.

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