A new study published in the journal Proceedings of the National Academy of Sciences shows that. After a period of nearly 13.8 billion years of continuous expansion, the universe may begin to shrink.
In the new paper, three scientists attempted to model the nature of dark energy – a mysterious force that appears to be causing the universe to expand faster than ever. Based on previous observations of the expansion of the universe.
In the model, dark energy is not a constant force of nature. It is an entity called essence and can decay over time.
Researchers have found that the expansion of the universe has been accelerating for billions of years, but the repulsion of dark energy may be waning. According to the above model, the acceleration of the universe could quickly end within the next 65 million years.
Then, within 100 million years, the universe could stop expanding completely, instead it could enter an era of slow contraction that ends billions of years from now with the death – or rebirth of the universe. time and space.
So what is dark energy?
Dark energy is a mysterious entity that many researchers believe works in the opposite way of gravity. That is, they will push the heaviest objects in the universe apart instead of pulling them together.
When dark energy weakens, gravity will be a stronger dominant force to the whole universe. As a result, stars, galaxies and planets are attracted to each other and as a result will lead to collisions. If this hypothesis is correct, the universe will face a prospect of self-destruction.
Many experts say that the time of the miniaturization of the universe will be so slow that if people were still alive on Earth at that time, they would not even notice the change. At that point, however, the universe will have reached only half its present size.
Studies also suggest that the universe’s cycle of expansion will create a repeating process of destruction and rebirth. The universe will shrink until it collapses on its own and re-enacts another Big Bang and creates a new universe.
(Refer to QTM)
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