A new study from the University of Copenhagen suggests that the expansion of the universe is due to a dark substance with a kind of magnetic force. If this model is true, it means that dark energy simply does not exist.
It is currently believed that 70% of the universe is made up of dark energy, a substance that makes it possible for the universe to expand at an ever-increasing rate.
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However, a new study by researchers at the University of Copenhagen in Denmark proposes a model in which dark energy is replaced by dark matter in the form of magnetic forces.
“If what we discovered is accurate, it would upend our belief that what we thought made up 70 percent of the universe does not actually exist. We have removed dark energy from the equation and added in a few more properties for dark matter. This appears to have the same effect upon the universe’s expansion as dark energy,” explains Steen Harle Hansen, associate professor at the DARK Center for Cosmology at the Niels Bohr Institute, one of the authors of the research.
However, much remains to be understood about this mechanism, and the researchers are looking to test their theory in better models that take more factors into account.
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“Honestly, our discovery may just be a coincidence. But if it isn’t, it is truly incredible. It would change our understanding of the universe’s composition and why it is expanding. As far as our current knowledge, our ideas about dark matter with a type of magnetic force and the idea about dark energy are equally wild. Only more detailed observations will determine which of these models is the more realistic. So, it will be incredibly exciting to retest our result,” says Steen Harle Hansen.