A survey of the southern sky has reconstructed how mass is spread across space and time, in the biggest study of its kind. The data provide striking evidence that dark energy, the force that appears to be pushing the Universe to accelerate its expansion, has been constant throughout cosmic history.
Image: Inside the dome of the Víctor M. Blanco telescope, which surveyed the Southern Hemisphere sky between 2013 and 2019.Credit: CTIO/NOIRLab/NSF/AURA/D. Munizaga
