Wednesday, August 6, 2008

East cost microwave


Astronomers led by Istv n Szapudi of the University of Hawaii Institute for Astronomy observed dark energy stretching out these areas by detecting changes in rays of microwave light before and after they passed through the regions.
'When a microwave enters a supercluster, it gains some gravitational energy, and therefore vibrates slightly faster,' Szapudi said. 'Later, as it leaves the supercluster, it should lose exactly the same amount of energy. But if dark energy causes the universe to stretch out at a faster rate, the supercluster flattens out in the half-billion years it takes the microwave to cross it. Thus, the wave gets to keep some of the energy it gained as it entered the supercluster.'
Szapudi, with University of Hawaii postdoctoral researcher Mark Neyrinck and graduate student Benjamin Granett, analyzed a map of the varying strength of the microwave radiation left over from the Big Bang, called the cosmic microwave background radiation (CMB), across the universe
Source link: http://www.foxnews.com/story/0,2933,397281,00.html




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