Building DESI New ring safely landed and un-slung on the C floor to the North of the SE Annex. New DESI top ring, with pretensioning fixture installed, shortly after liftoff outside the building. New ring entering the dome. The old top end after fully exiting the dome. View day crew saw from bus as they approached the summit. DESI Science DESI ICHEP Mayall Star Trails If you have questions about obtaining higher-resolution images, or about caption and credit information for any of the DESI images and multimedia resources contained here, please contact email@example.com.