We are all made of particles that formed in the first instants of the universe. Discover the tiniest constituents of matter and how they evolved to make the universe we see around us today. Find out what is happening at the Large Hadron Collider and meet the people who build and operate this extraordinary machine.

CERN is open to visitors wanting to book guided tours behind the scenes. In October 2023, CERN will open a new science centre housing exhibitions, labs and events https://sciencegateway.cern/ For more information on CERN’s current exhibitions see https://visit.cern/ and for our travelling exhibition, multimedia and object loans see https://visit.cern/exhibitions-object-loans