Nothing beats that first view of the ATLAS Experiment at CERN when you get 100m underground 🤩. When the Large Hadron Collider is off, it's possible for physicists, engineers and technicians to go underground to perform upgrades or replace small parts of the detectors. From late summer next year, we'll enter our long shutdown period, which will last about four years, and enable us to perform larger upgrades. #physics #CERN #collider #science #DidYouKnow | Particle Clara