Daily Mail 
January 3, 2019
Researchers have proposed a new model that could finally help to explain the expansion of our universe.
For the last two decades, it’s been widely accepted that the universe is expanding at an accelerated rate, driven by an unseen force known as dark energy.
Building off of a concept known as the string theory, the new work proposes the idea that dark energy and our universe are part of an expanding bubble that sits within a fourth dimension.
According to the radical new model proposed by a team of researchers at Uppsala University, our universe is positioned on the edge of this expanding bubble.
It also incorporates the vibrating stringlike entities said to make up all matter in the string theory.
Though researchers have used the string theory in attempt to explain dark energy, many such efforts have been met with criticism over the last 15 years.
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