Credit: NASA/WMAP scientific team
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single? Hidden in the fuzzy relic of microwave from big bang could be the imprint of another universe came into collision with our own.Credit: NASA/WMAP scientific team If you thought that the cosmos was much to take, think again. Theorists have long suggested that our universe is one of the many that exist in a complex "Multiverse." Now researchers have discovered advice that this may actually be the case.
Yet, researchers who claim to be the first to find the presence of a multiverse, observation data can prove that our universe is one of the many. However, their analysis, published last Friday on the arXiv preprint server involves accurate plues could confirm the existence of a multiverse. "It's incredibly exciting to think that there is even a chance that proof of compliance to a multiverse could be found in our lives," said Alan Guth, a cosmologist at the Massachusetts Institute of Technology, Cambridge, which was not involved in the study.
The possibility of a multiverse comes from the theory of inflation, the idea that our universe through rapid expansion, shortly after the big bang. Initiated by Guth, inflation theory do a good job explaining why space is quite smooth. But scientists can explain what began to expand and that it has ceased. These problems led to theorists to consider the possibility that inflation could occur at other locations and time, generating new parallel to our own universe.
Cosmologist Hiranya Peiris, University College London and his colleagues decided to test a multiverse by examining the radiation background (CMB) cosmic microwave, a remnant of the big bang which provides a map for what the universe looked like some 380,000 years in his life. If a nearby universe had somewhat interacted with our universe prior to this date, it might have left its imprint on CMB for us to discover almost 15 billion years later. According to group the's footprint have some recognizable features such as distinct edges and symmetrical forms.
To find features, researchers have developed a computer algorithm that analysed it a small portion of the CMB data recorded by the NASA Wilkinson Microwave Probe anisotropy. Algorithm as the data that was consistent with the type of functionality generated by a collision between a universe. Although not a discovery as it is an indicator suggesting that could find a more definitive result with the observations of high-resolution, such as the Planck satellite launched last year. "We are a not expect to find anything, and we found rather these tips intriguing even in the current data, explains Peiris.".
Alexander Vilenkin, a cosmologist at Tufts University in Medford, Massachusetts, which contributed to the development of the theory of inflation, think this is a result "encourage." "If indeed find us some functionality in the CMB are well equipped with a collision but are difficult to explain otherwise it would be a very important development," he said.
Yet, the news is not all the good. CMB, primarily random, is notoriously open to what is called a posteriori - observations, you can see that it that you want to see. In one famous case, scientists claimed to distinguish the initials of the British physicist Stephen Hawking. Although the group the's calibrated his algorithm to avoid such errors, there is always opportunity features may have a more mundane origin. "Unless nature reveals a unique feature in the CMB, it will be difficult to differentiate too many details about the dynamic processes which occur in the nascent universe," explains Arjun Berera, a cosmologist at the University of Edinburgh to the United Kingdom.
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