The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than ...

Scientists have completed a five-year survey using the Dark Energy Spectroscopic Instrument (DESI), creating the largest ever 3D map of the universe to study dark energy.

The telescope on the left is where the Dark Energy Cam (DECam) is mounted, surveying the skies as part of the DESI project. Credit: NOIRLab, National Science Foundation One of the mysteries of the ...