In March 2024, workers are preparing to move the Rubin Observatory Primary Mirror from storage into the main observatory facility (in the background on the left). The mirror, inside a transport container, has been in this storage building since it arrived on Cerro Pachón in 2019. Soon it will be coated and mounted on the Simonyi Survey Telescope.
Credit: RubinObs/NSF/AURA/W. O'Mullane