Cosmologists claim universe is riding on an expanding bubble in an extra dimension

Cosmologists at Uppsala University in Sweden have developed a new model for the structure of the universe.

In a new paper published in the journal Physical Review Letters, scientists claim the universe is riding on an expanding bubble in an extra dimension. The new model could help astrophysicists unravel the mysteries of dark matter.

According to the most popular models of cosmic evolution, the ubiquitous presence of dark matter accounts for the universe's continued expansion. But little is understood about the mysterious matter.

Scientists previously looked to string theory for answers. String theory posits that all matter exists as tiny vibrating filaments. String theory also demands more than three dimensions.

Some proponents of string theory claim their models successfully account for dark energy. But many astrophysicists consider string theory models flawed and unworkable.

In the new model, the entirety of the universe is contained on the edge of an expanding bubble. All of the matter contained within the universe is linked with strings stretching into a fourth dimension.

Researchers think the new model can also explain the development of black hole.

"Gravitational collapse of the string endpoints in four dimensions results in an unstable black string solution in five dimensions," researchers wrote in their paper.

Authors of the new model claim their creation is compatible with string theory's current framework. According to the new research, the new model also allows for multiple bubbles and multiple universes.

"The Uppsala scientists' model provides a new, different picture of the creation and future fate of the Universe, while it may also pave the way for methods of testing string theory," according to a news release.

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Researchers create tiny droplets of early universe matter
Boulder CO (SPX) Dec 11, 2018
Researchers have created tiny droplets of the ultra-hot matter that once filled the early universe, forming three distinct shapes and sizes: circles, ellipses and triangles. The study, published in Nature Physics, stems from the work of an international team of scientists and focuses on a liquid-like state of matter called a quark gluon plasma. Physicists believe that this matter filled the entire universe during the first few microseconds after the Big Bang when the universe was still too hot for ... read more