Astronomers have found an enormous hole in the Universe, nearly a billion light-years across, empty of both normal matter such as stars, galaxies, and gas, and the mysterious, unseen "dark matter." While earlier studies have shown holes, or voids, in the large-scale structure of the Universe, this new discovery dwarfs them all.
Not only has no one ever found a void this big, but we never even expected to find one this size,"
Simulated Graphic here
http://www.nrao.edu/pr/2007/coldspot/graphics.shtml...including the Press release.
***Thoughts
A billion light year across - void.
How?
1/The random distribution of matter during the Big Bang?
2/If so...should'nt there be as many high density areas, as low?
3/An evaporated Black hole?
4/A very old, or very new, part of the Universe?
All ideas open for discussion