discovered, in August 2007, a black hole 900 million light years
Researchers at the University of North Carolina explain it with "string theory"
"There is a myriad of universes around our" ....... . BIGNAMI
LUIGI'S 'A huge hole in the universe. It is located between 6 and 10 billion light years from Earth. This is a volume of space with a diameter of about 900 million light-years where the "nothing" is really the king. Tools that have uncovered appears to be a huge dark spot in the sky, as if a huge hand had removed almost all the bright objects present within it.
Now a team of researchers gave an explanation for that phenomenon. Sounds sci-fi, but Laura Mersini-Houghton of the University of North Carolina at Chapel Hill (USA) says just that: "It 's the imprint of another universe that lies beyond our own." But to understand this explanation - that appeared in NewScientist - all ideas that could revolutionize lot about our universe must take a step back.
"Not only has never been found so great a void, but no assumptions about the structure of the universe had expected," said Lawrence Rudnick of the University of Minnesota (USA), author of the discovery of the hole which took place last month August. And this explains why its existence had been brought to light almost by accident.
"It was a morning during which the radio telescopes of the VLA (Very Large Array) - able to pick up every tiny radio signal emitted by a star, a galaxy or other celestial body is still active - were not involved in the specific comments and then I decided to head towards the "cold spot "NASA's Space Telescope detected by WMAP (Wilkinson Microwave Anisotopy Probe)," said Rudnick. The "cold spot" in question is a mysterious anomaly in the map of the "cosmic background radiation" of the Universe, the radiation that permeates the 'whole universe and which is interpreted as the residual energy of the Big Bang. Such radiation varies from one point to another that does not exceed 0.001 percent. But the "cold spot" which is in the direction of the constellation Eridanus, did not come to the VLA radio telescopes no "photon", ie particles of energy, which move at the speed of light and usually are emitted by atoms or active stars. This indicated that the area was completely empty of matter. Now
have triggered the assumptions to give an explanation for the fact that huge hole of nothing. Assumptions that did not give the full reason for the phenomenon. Now Mersini-Houghton seems to have given meaning by interpreting it outside the standard cosmology. The researcher in fact, has used the "string theory", a theory of physics which assumes that matter, energy, space and time are the manifestation of entities underlying physical, called the "strings", which vibrate in 10 dimensions of space-time and which are subatomic particles that originate atoms.
According to this theory there is only one universe, but 10 to 500 universes (imagine a number consisting of 1 followed by 500 zero, an unimaginable number), each with its own physical laws. Explain
Mersini-Houghton, "When our universe was formed was to interact with other universes neighbors. And that hole is just the result of that interaction took place shortly after the birth of our universe since then, what features it has , continued to expand. Unfortunately we can not observe what comes to us from the boundaries Universe, which is between 42 and 156 (a) billions of light years from us and then we can not see what lies beyond the hole. "But that hole is exactly the impression that there is a universe different from ours left at the beginning of time and space.
The hole formed in the early Universe agrees well Rudnick, who says: "Current theories suggest that all the structures we see today took shape in the Universe the beginning of time and space. The actual structure made of empty and agglomerations of matter, then, has grown over time driven by gravitational forces.
According Mersini-Houghton, however, there should be another hole similar to that found on the side Universe opposite to that already observed and we'll know when this will launch another satellite for the study of microwave Universe much more sophisticated than previous ones, the ESA satellite Planck.
The hypothesis of astrophysics is now under observation of the entire scientific world, which looks with suspicion at the time to string theory. But if the assumption made by Houghton-Mersini not be denied, will begin the search to the nearly infinite number of universes that surround us.
Some readers will wonder how it is possible that the universe has a radius of 42 or 156 billion light years away if it was born only 13.7 billion years ago. The explanation lies in the fact that in time the measures were dilated. Please forgive the simplification, but one centimeter measured after a few seconds of the birth of the universe does not correspond to an inch today.
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