New Model Suggests Our Universe Is Riding An Expanding Bubble In An Extra Dimension

Monday, 31 December 2018 - 11:45AM
Space
Weird Science
Monday, 31 December 2018 - 11:45AM
New Model Suggests Our Universe Is Riding An Expanding Bubble In An Extra Dimension
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Composite adapted from Pixabay images.
When considering models of the universe, there is one very important factor that researchers have struggled with: the presence of dark energy. Dark energy is a combination of normal matter and dark matter, and according to NASA, it makes up around  70 percent of the universe. Accounting for the hypothetical energy, a new model developed by a team from Uppsala University in Sweden proposes that we may be riding on the edge of an expanding bubble in an extra dimension.

In an article published in Physical Review Letters, lead author Souvik Banerjee and his team discuss some pretty complicated topics, from de Sitter solutions to an "UV/IR puzzle for embedding cosmological vacua in a unitary theory of quantum gravity." Breaking down the argument in terms that laypersons can understand, Futurism explains that the bubble in the new model is "being inflated by dark energy and which is home to strings that extend outwards from it and correspond to all the matter that it contains." In a statement, Banerjee spoke about the problems with previous theories and the need for a new model. "It has long been hoped that string theory will provide the answer," the researchers said. "According to this theory, all matter consists of tiny, vibrating 'stringlike' entities. The theory also requires there to be more spatial dimensions than the three that are already part of everyday knowledge."

According to the Uppsala team, the bubble we're riding may not even be that special. "It is conceivable that there are more bubbles than ours, corresponding to other universes." Like every model before it, this new theory is bound to have holes poked in it by other smart people after they've had a chance to dissect the article and dig deeper into its ideas, but for now we are fascinated by the mental picture it paints.
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