Astronomers Suggest Different Dimensions May Exist in our Universe

Researchers propose a new way to construct a universe of dark energy, where our universe rides on an expanding bubble in an extra dimension. Our entire universe fits on the edge of the expanding bubble.

Researchers at Uppsala University have formulated a new model for our universe to solve the mystery of dark energy. The new study suggests a new way to construct a universe of dark energy where our universe rides on an expanding bubble in an extra dimension.

In a study, Swedish physicists have pointed out the existence of another dimension in the universe we live in. What scientists are proposing is that our universe exists within an expanding bubble in an extra dimension.

Studying the cosmos in the last 20 years has shown that the universe is constantly expanding, and the speed of its expansion increases.

The conventional explanation for this goes through the existence of a type of energy (dark energy), which permeates everything and which “pushes” the universe to expand more and faster.

In physical cosmology and astronomy, dark energy is a still-unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe

However, the existence of the mysterious dark energy poses more questions than answers, functioning as a kind of a cosmic wildcard in some explanations of theoretical physics.

To avoid this problem, researchers from the University of Uppsala have proposed a new concept that includes the existence of another dimension and other universes.

In their study, published in the journal Physical Review Letters, physicists from Uppsala University argue that our universe is “mounted” on a bubble that expands in an additional dimension.

Our entire universe fits on the edge of the expanding bubble. All matter found in our universe corresponds to the endpoints of strings that extend into the extra dimension. The researchers also show that expanding bubbles of this kind can be created within the string theory framework.

One can imagine that there are more bubbles than ours that correspond to other universes.

In this way, the new scientific model provides a new and suggestive point of view of the creation, evolution, and destiny of the universe in which we live, one that completely dispenses the need for dark energy.

The Uppsala researchers’ model gives a new and different picture of the universe’s creation and future destiny while paving the way for methods to test string theory.


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Source
Uppsala Universitet

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