SMRTR TechMar 19, 2025Ars Technica

Hints grow stronger that dark energy changes over time

SMRTR summary

The Dark Energy Spectroscopic Instrument (DESI) has found stronger evidence that dark energy may vary over time, rather than being constant. Latest results from 3 years of data, combined with other studies, show a 2.8 to 4.2 sigma confidence level for dynamical dark energy, approaching but not yet reaching the 5-sigma discovery threshold.

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