Just 100 years ago, on 9 July 1925, Werner Heisenberg wrote a letter to his friend, colleague and fiercest critic, Wolfgang ...

Beamline for Schools (BL4S) is a physics competition that was initiated by CERN, the European Laboratory for Particle Physics ...

An unforeseen feature in proton-proton collisions previously observed by the CMS experiment at CERN’s Large Hadron Collider (LHC) has now been confirmed by its sister experiment ATLAS. The result, ...

Welcome to the digital edition of the July/August 2025 issue of CERN Courier.

The Slovenian flag was raised today at a ceremony held at CERN to mark the country’s accession as CERN’s 25th Member State.

One hundred years ago, Werner Heisenberg retreated to the island of Helgoland, where he built the foundations of the first full formulation of quantum mechanics. Finding its matrices repugnant, Erwin ...

With another successful edition of Bike to Work drawing to a close, the 2025 campaign has once again demonstrated the CERN community’s commitment to the environment, health and camaraderie. Involving ...

Established in 2014, the Outstanding Achievement Awards honour outstanding contributions made to the collaboration outside ...

For three weeks from 7 July 2025, the route de Meyrin cut-and-cover tunnel in the Geneva-France direction is closed from 6 a.m. to 3 p.m. Traffic in the Geneva-France direction is diverted via avenue ...

After a brief introduction, students are instructed on how to build their own particle detector. Then they observe the tracks of particles made visible by the chamber. The session concludes with a ...

LHC Page 1 today at 05:55 am. (Image: CERN) A major event at the Large Hadron Collider (LHC): the accelerator has just collided beams of protons and oxygen ions for the very first time. From 29 June ...