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Dark matter and energy

Dark matter and energy

Baryon acoustic oscillations hint that dark energy may have changed over time

05 Apr 2024 Hamish Johnston
BAO measured by DESI
Looking back in time: a slice in time of the universe showing bubbles of galaxies that are a result of baryon acoustic oscillations. (Courtesy: Claire Lamman/DESI collaboration/custom colormap package by cmastro)
Preliminary observations made by the Dark Energy Spectroscopic Instrument (DESI) hint that the accel

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