About CERN


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


There are 10 times more engineers and technicians employed by CERN than research physicists. Why?


A range of experiments at CERN investigate physics from cosmic rays to supersymmetry


The research programme at CERN covers topics from kaons to cosmic rays, and from the Standard Model to supersymmetry

The birth of the web

The World Wide Web, invented at CERN in 1989 by British scientist Tim Berners-Lee, has grown to revolutionize communications worldwide

The accelerator complex

There's more to CERN than the Large Hadron Collider. A series of accelerators work together to push particles to nearly the speed of light

The structure of CERN

Find out how CERN is governed and organised; about its council, member states, and departments

How a detector works

Just as hunters can identify animals from tracks in mud or snow, physicists identify subatomic particles from the traces they leave in detectors

How an accelerator works

Electric fields and radiofrequency cavities accelerate particles inside accelerators, while powerful magnets focus or steer the particle beams

Member states

CERN is run by 22 member states, and many non-European countries are involved in different ways