Can a scientist prove the big bang theory
Found evidence of a pre-Big Bang universe?
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Can one still find traces of a possible pre-universe in the cosmic background radiation? Two well-known physicists and mathematicians say they have found possible evidence that a universe existed before the Big Bang.
It will hardly be possible to enumerate the number of heated discussions in which astronomers debated the question: How did our now visible universe come about? For the time being, the Big Bang theory has probably won the race, because a component of this theory is the clearly recognizable expansion of the current space; the experts dubbed "Expansion of the Universe". This expansion was discovered by G. Lemaitre in 1927. He linked this discovery with Slipher's redshifts and Hubble's distances and concluded that the visible universe was expanding. These considerations finally led to the assumption of the Big Bang, since the distances between the galaxies in this model disappear at a finite point in time in the past and then a state of infinitely high density had to exist.
Theories about the origin of the present universe
(Image: own graphic)
On June 30, 2001, the Wilkinson Microwave Anisotropy Probe (WMAP) spacecraft was launched on a Delta II 7425-10 launcher. It was used to research irregularities in cosmic background radiation; a map was made of this radiation. The cosmic background radiation (three Kelvin radiation) is electromagnetic radiation that can be detected from every area of the sky. It thus provides important information about the early universe.
When evaluating the WMAP data of this echo of the Big Bang, the astronomers found that not everything is as uniform as originally assumed. The smallest temperature fluctuations were found, which often only amount to a millionth fraction of a degree. This could possibly be related to the differences in density. Thus, there would be a little more matter in one place in the universe than in another. In addition, concentric rings with explicitly lower temperatures emerged. The physicist and cosmologist Roger Penrose and his colleague Vahe Gurzadyan now say that these structures are the traces of black hole collisions, still in the universe from which our current cosmos emerged in the Big Bang. If this statement were true, then we would have evidence that we could look ahead of the previously aprostophoned Big Bang.
That would then mean that we are not dealing with a start from zero (image 1 in the graphic) but with a cyclical universe (image 2 in the graphic). In the opinion of the two scientists, a new cosmos emerges cyclically from an aging universe through a new big bang. The concentric rings in this model are remnants of the gravitational waves that were released when super-massive black holes collided in galaxy clusters in the previous cosmos of our universe.
And so the debate begins again. This cyclical cosmology, now favored, is controversial among many scientists. It is appropriate to seek further evidence to confirm or reject this new theory. It is important to reconsider whether all the physical laws about the Big Bang, such as the initial singularity, the time sequence and the expansion presented so far, are in accordance with this new theory. If there was a singularity in the restart, where did the information from the previous universe come from? Or did this new big bang turn out differently? Questions about questions; will be interesting when new answers come.
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