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A gaint hole in the Whole!
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Written by Daniel   
Sunday, 26 August 2007 10:35

Gaping Hole Found in Universe

DailyTech  

Unexpected results baffle our understanding of the universe
Astronomers have found a giant "hole" in the universe that measures nearly a billion light-year across. The large galactic void is empty of galaxies, stars, dust clouds and, oddly enough, even dark matter. The discovery has left scientists clambering for a plausible explanation, however, as of right now one hasn't arisen. Scientists claim that a galactic void this large is far from a normal occurrence.
The region was intially discovered by NASA's Wilkinson Microwave Anisotropy Probe (WMAP) Satellite. At that time, scientists had no idea that it would turn out to be a giant space void.

 

 

 The WMAP satellite measures the temperature of cosmic microwave background radiation (CMB) over the entire sky. CMB radiation is a form of electromagnetic radiation that fills the entire universe and can be detected in all regions of space. This radiation is remnant heat from the Big Bang and is very cold, measuring just 2.725° above absolute zero.

On the map of the Cosmic Microwave Background (CMB) radiation produced by the WMAP satellite, the void came up as a cold spot. Since the temperature of CMB radiation is quite uniform in all of space, scientists already knew there was something special about the region. Lead researcher Lawrence Rudnick of the University of Minnesota said "we already knew there was something different about this spot." Due to its cooler appearance on the CMB Map, the void was dubbed the "WMAP Cold Spot."... More

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