LARAMIE, Wyo., April 15 -- The University of Wyoming issued the following news release:

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission, mapping more than 47 million galaxies and quasars, and creating the largest high-resolution 3D map of the universe to date.



Last night, the 5,000 fiber-optic eyes of DESI swiveled onto a patch of sky near the Little Dipper. Roughly every 20 minutes, the fiber-optic eyes locked on to distant pinpricks of light, gathering photons that had traveled toward Earth for billions of years. When the sun rose, collaborators marked completion of a major milestone: successfully surveying all of the area in DESI's originally planned map of the universe.



Adam ...