Gaping hole in the Universe
There may be an enormous hole in the Universe, nearly a billion light-years across, empty of any matter such as stars, galaxies and gas. While earlier studies have shown holes, or voids, in the large-scale structure of the Universe, this new discovery dwarfs them all.
The region had been dubbed the "WMAP Cold Spot," because it stood out in a map of the Cosmic Microwave Background (CMB) radiation made by the WMAP satellite, launched by NASA in 2001. The CMB, faint radio waves that are the remnant radiation from the Big Bang, is the earliest "baby picture" available of the Universe. Irregularities in the CMB show structures that existed only a few hundred thousand years after the Big Bang.
"Although our surprising results need independent confirmation, the slightly lower temperature of the CMB in this region appears to be caused by a huge hole devoid of nearly all matter roughly 6-10 billion light-years from Earth," said Lawrence Rudnick astronomy professor at the University of Minnesota .
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Dark Energy paints the Void? from Centauri Dreams
WMAP Cold Spot - Mostly Empty Space - by Pamela @ Star Stryder
Critique on NRAO illustration by Ryan Wyatt @ Visualizing Science