News and opinion from the world of particle physics: experiments, theory, accelerators, computing and beyond.

OUR MISSION. CERN Courier is essential reading for the international high-energy physics community. Highlighting the latest research and project developments from around the world, …

Welcome to the latest issue of CERN Courier. Should a Higgs factory be a linear or circular electron–positron collider? Intriguingly, the key strategic technology may be the same in either …

Astrophysics and cosmology; Review; Gravitational remnants in the sky. Relic Gravitons, by Massimo Giovannini of INFN Milan Bicocca, offers a timely and authoritative guide to one of …

4 days ago · Nuria Catalan Lasheras and Igor Syratchev explain why klystrons are strategically important to the future of the field – and how CERN plans to boost their efficiency above 90%. …

Sep 16, 2024 · Accelerating into the future Seventy years after construction began on CERN’s still-operational Proton Synchrotron (above, left), a new generation of researchers is being …

Mar 26, 2025 · Avoiding electron clouds CERN’s Vacuum, Surfaces and Coatings group has greatly improved its amorphous carbon coating technique. Credit: C Krishna/CERN-PHOTO …

4 days ago · Dynamic and adaptive Inspired by inaccessible instruments such as the James Webb Space Telescope (top), CERN is moving to automate future colliders. Promising initial …

5 days ago · Community inputs Self-attributed themes of the 263 community inputs to the European Strategy process. The themes are ordered by umbrella category and percentage of …

Mar 24, 2025 · Dress rehearsal Preparing to integrate the corrector package (yellow) with the separation and recombination dipole (blue) at the inner-triplet-string test stand at CERN. …