Tuesday, May 11, 2010

Most Distant Galaxy Cluster Revealed by Invisible Light

Deep Space Viewing
An international team of astronomers from Germany and Japan has discovered the most distant cluster of galaxies known so far -- 9.6 billion light years away. The X-ray and infrared observations showed that the cluster hosts predominantly old, massive galaxies, demonstrating that the galaxies formed when the universe was still very young. These and similar observations therefore provide new information not only about early galaxy evolution but also about history of the universe as a whole.

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