New framework suggests dark energy could be evolving—and may be linked to the Hubble tension

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New framework suggests dark energy could be evolving—and may be linked to the Hubble tension 26.03.2026

Phys.org

A new mathematical framework developed by Chinese cosmologists Yun Chen and colleagues at the Chinese Academy of Sciences proposes that dark energy might be evolving over time, potentially offering a resolution to the long-standing Hubble tension. The framework analyzes data from various cosmic probes, including the Cosmic Microwave Background, type Ia supernovae, and Baryon Acoustic Oscillations, to independently assess different epochs of the universe's history. While their analysis indicates that no alternative dark energy model significantly outperforms the standard ΛCDM model, it reveals compelling evidence for dark energy's evolving properties and hints at possible interactions between dark matter and dark energy, suggesting a need for more advanced observational data and theoretical models to fully understand cosmic acceleration and resolve current discrepancies.

Phys.org Full Article

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