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Is dark energy changing over time?

DESI baryon-acoustic-oscillation data, combined with CMB and supernova data, constitute robust (≥3σ, systematics-resistant) evidence that the dark-energy equation of state evolves rather than being a cosmological constant (w = −1).

Physics & Space
cosmology
dark-energy
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supernovae

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Evidence: Partial

Is dark energy changing over time?

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