Amazing stuff! However, it is computer modeling!
"... Current models say the universe expands evenly in all directions, with no sign of rotation. This idea fits most of what astronomers observe. But it doesn't explain the so-called Hubble tension—a long-standing disagreement between two ways of measuring how fast the universe is expanding. ...
team developed a mathematical model of the universe. First, it followed standard rules. Then they added a tiny amount of rotation. That small change made a big difference. ...
"Much to our surprise, we found that our model with rotation resolves the paradox without contradicting current astronomical measurements. Even better, it is compatible with other models that assume rotation. ...
Their model suggests the universe could rotate once every 500 billion years—too slow to detect easily, but enough to affect how space expands over time. ..."
From the abstract:
"The discrepancy between low and high redshift Hubble constant measurements is the highest significance tension within the concordance Lambda cold dark matter paradigm.
If not due to unknown systematics, the Hubble Puzzle suggests a lack of understanding of the universe’s expansion history despite the otherwise spectacular success of the theory. We show that a Gödel inspired slowly rotating dark-fluid variant of the concordance model resolves this tension with an angular velocity today Gyr−1. Curiously, this is close to the maximal rotation, avoiding closed time-like loops with a tangential velocity less than the speed of light at the horizon."
UH astronomer finds the universe could be spinning (original news release)
Can rotation solve the Hubble Puzzle? (open access)
Figure 1.Time evolution (log–log scale) of the Hubble parameter for non-rotating (analytical) and rotating (numerical) solutions at different rotation parameter values as of today. Small figures show the evolution (normal scale) at the decoupling period and today.
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