LHCb event at 13 TeV
An event recorded by the LHCb detector during first 13 TeV collisions on 21 May 2015 (Image: CERN)
Physics

CERN's physics programme ranges from nuclear to high-energy physics and from studies of antimatter to the possible effects of cosmic rays on clouds.
LHC tunnel pt1 various angle
LHC tunnel pt1 various angle (Image: CERN)
Accelerators

Particle accelerators propel sub-atomic particles to extremely high velocities for a variety of uses from high-energy physics research to medical scans and treatments.
Cloud Experiment. View inside the chamber with Jasper Kirkby, Head leader of the project.
CLOUD, the cutting-edge physics experiment that will shed light on climate-related matters, has finished its assembly phase and is starting taking data using a beam of protons from the Proton Synchrotron. (Image: CERN)
Experiments

Diverse experiments at CERN investigate physics from the early universe to supersymmetry.
Last sleeve welding splice consolidation for LS1 - SMACC.
vue du dispositif sur manchette M1 avec le collier de soudure orbital (Image: CERN)
Engineering

Engineers at CERN build and test the machines and systems that physicists rely on, and technicians keep these systems running smoothly, performing repairs and upgrades where necessary.
Cern Computer Center
(Image: CERN)
Computing

Experiments at CERN generate colossal amounts of data. The Data Centre stores these data sets and sends them around the world for analysis.