March 20, 2025
New DESI results strengthen hints that dark energy may evolve
Researchers see hints that dark energy, widely thought to be a “cosmological constant,” might be evolving over time in unexpected ways.
New results from the Dark Energy Spectroscopic Instrument (DESI) collaboration, one of the most extensive surveys of the cosmos ever conducted, reveal that the impact of dark energy may be weakening over time — and the standard model of how the universe works may need an update.