The universe has been expanding since its creation, and based on our latest knowledge, the expansion is constantly accelerating. Cosmology currently has no coherent explanation for why this happens. According to current theories, the expansion is caused by dark energy. This energy is dark because we know almost nothing about it, so the door remains open to alternative theories.
This is the theory that colleagues at the Niels Bohr Institute of the University of Copenhagen and Tokyo University of Technology came up with in their paper published in the Journal of Cosmology and Astroparticle Physics: Accordingly, the reason for the continuous inflation of the universe is that it is constantly melting nascent parallel universes into itself.
We find that there may be a simple and intuitive explanation for dark energy causing the accelerating expansion of the universe, called mergers with infant universes, and that this model fits the data better than the Standard Model.
– explains the author of the article, physicist Jan Ambourne.
The study consists mainly of mathematical explanations, which we will not go into now. Suffice it to say that the story that unfolds from them has the expected intellectual grace. It is best shown by, for example, inflation.
So we went
One of the strange chapters in the history of the universe was the so-called inflation, which immediately followed the Big Bang. It all took a millionth of a millionth of a second, but that mercilessly short time was enough for the universe to grow from an infinitesimal point to the size of a football. There are some problems with this theory, as the driving force causing inflation and its fatal end has been explained by a hypothetical field, while evidence derived from the cosmic microwave background radiation that remained after the entire event has also caused serious controversy.
According to the new study, what happened during inflation is that our universe collided with an older, larger world and then merged with it.
Since we do not currently have a detailed description of the merger, it is difficult to judge whether this scenario solves the problems that inflation was supposed to solve, but the interesting aspect of this scenario is that it does not require space to analyze. Cause inflation
they write.
Based on data from the James Webb Space Telescope and the European Euclid Space Telescope, a model that best describes the expansion of the universe may be determined, said Goseguki Watabiki, a physicist at the Tokyo Institute of Technology.
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