“A new data release hints dark energy may be weakening”

On March 19, 2025, scientists announced the results of a new analysis using the Dark Energy Spectroscopic Instrument (DESI), mounted on the Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory in Arizona. With the first three years of data involving some 15 million galaxies and quasars, they’ve found hints that dark energy changes over time. Dark energy, which makes up some 70% of the universe, is a mysterious force that drives the accelerating expansion of our universe.










