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New Rotating Universe Model Offers Solution to Hubble Tension

Cosmologists propose a slow cosmic spin—one rotation every 500 billion years—to reconcile conflicting expansion rate measurements.

Pictured: Stock image of an astronomical observatory under a sky of star trails at night.
The Universe May Be Rotating Once Every 500 Billion Years, And It Could Explain The Hubble Tension
Major Problem in Physics Could Be Fixed if The Whole Universe Was Spinning
Our planet, solar system and even the Milky Way galaxy are spinning. So could the universe be spinning, too? Image via Pixabay.

Overview

  • The rotating universe model, published in the Monthly Notices of the Royal Astronomical Society, resolves the Hubble tension without contradicting current astronomical data.
  • The Hubble tension refers to the persistent discrepancy between early-universe measurements (~67.4 km/s/Mpc) and local measurements (~73 km/s/Mpc) of the universe’s expansion rate.
  • Researchers suggest the universe rotates at a nearly imperceptible rate, completing one spin every 500 billion years, which affects how space expands over time.
  • This model avoids relativistic paradoxes, such as time travel loops, by staying within the maximum permissible rotation speed under the laws of physics.
  • Future work will focus on developing simulations and identifying observational signatures to test the rotating universe hypothesis empirically.