It shuts down at the end of this year, and restarts in 2021. During this period the first set of detector upgrades will be installed. Then, it shuts down again

It shuts down at the end of this year, and restarts in 2021. During this period the first set of detector upgrades will be installed. Then, it shuts down again at the end of 2023 for the rest of the upgrades before restarting as HL-LHC in 2026. https://project-hl-lhc-industry.web.cern.ch/content/project-schedule https://project-hl-lhc-industry.web.cern.ch/content/project-... So it'll be shut down for about half of those 8 years.