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Computer Security: Your ticket to improvement

The past two years have brought a lot of new computer-security deployments at CERN. Some of these were not the most user-friendly for the CERN community, as this is not in the inherent nature of “security”, but we tried our best

News
Computing
11 December, 2025
Computing
News
11 December, 2025
Computing
News
At CERN
Official news

ALICE solves mystery of light-nuclei survival

Observations of the formation of light nuclei from high-energy collisions may help in the hunt for dark matter

News
Physics
10 December, 2025

Upcoming events

Check out this curated list of upcoming events for the CERN community

Announcement
At CERN
10 December, 2025
At CERN
Announcement
10 December, 2025
At CERN
Announcement

LHC delivers a record number of particle collisions in 2025

All experiments broke records in the final full operating year of the third run of the LHC

News
Accelerators
09 December, 2025
Accelerators
News
09 December, 2025
Accelerators
News

Service availability during CERN’s annual closure 2025/2026

Official news
At CERN
09 December, 2025
At CERN
Official news
09 December, 2025
At CERN
Official news

Official holidays in 2026 and end-of-year closure 2026/2027

(In accordance with Articles R II 4.38 and R II 4.39 of the Staff Regulations)

Official news
At CERN
04 December, 2025
At CERN
Official news
04 December, 2025
At CERN
Official news

Extension of the pre-retirement programmes

Official news
At CERN
04 December, 2025
At CERN
Official news
04 December, 2025
At CERN
Official news

Deciphering the heavyweights of the tetraquark world

The CMS collaboration reports the first measurement of the quantum properties of a family of tetraquarks that was recently discovered at the LHC

News
Physics
03 December, 2025

Annual test of diesel generators on 16 December

Announcement
At CERN
03 December, 2025
At CERN
Announcement
03 December, 2025
At CERN
Announcement