40K views · 1.4K reactions | Who remembers the Large Electron-Positron Collider, which was operated by CERN from 1989 to 2000? If you don't, time to get a refresh. It is, after all, the largest electron-positron ever built.  | CERN | Facebook

15K views · 657 reactions | A short film presenting the milestone moment when the civil engineering teams made the junction that connected the High Luminosity LHC with the LHC tunnel. Find out more: https://home.cern/news/news/accelerators/breakthrough-high-luminosity | CERN | Facebook

The LHC tunnel and that of its successor, the High-Luminosity LHC, are now connected. This week, the civil engineering companies made the junction between the underground facilities at Points 1 and 5 of the accelerator. Lucio Rossi, Leader of the HL-LHC project, Frédérick Bordry, Director for Accelerators and Technology, Fabiola Gianotti, CERN Director-General, and Oliver Brüning, Deputy Leader of the HL-LHC project, met this morning in the LHC tunnel to celebrate the breakthrough. Find out more