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Service availability during CERN’s annual closure 2025/2026

Official news
At CERN
09 December, 2025

Service availability during CERN’s annual clo...

At CERN
Official news
09 December, 2025

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

Official holidays in 2026 and end-of-year clo...

At CERN
Official news
04 December, 2025

Extension of the pre-retirement programmes

Official news
At CERN
04 December, 2025

Extension of the pre-retirement programmes

At CERN
Official news
04 December, 2025

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

Annual test of diesel generators on 16 Decemb...

At CERN
Announcement
03 December, 2025

Reminder from Logistics services: private deliveries to CERN are prohibited

Announcement
At CERN
02 December, 2025

Reminder from Logistics services: private del...

At CERN
Announcement
02 December, 2025

Burglary and thefts in public places prevention campaign

Official news
At CERN
02 December, 2025

Burglary and thefts in public places preventi...

At CERN
Official news
02 December, 2025

CERN Health Insurance Scheme (CHIS) - Opening hours of UNIQA offices during the end-of-year closure

Official news
At CERN
02 December, 2025

CERN Health Insurance Scheme (CHIS) - Opening...

At CERN
Official news
02 December, 2025

Send a CERN e-card

Send colleagues, family and friends season’s greetings using the CERN e-card service

Announcement
At CERN
28 November, 2025

Send a CERN e-card

At CERN
Announcement
28 November, 2025

Another year of outstanding accelerator complex performance

The extraordinary performance reflects decades of accumulated expertise, a culture of continuous development and improvement, and a sustained collective effort across all technical and operational domains

Opinion
Accelerators
28 November, 2025

Another year of outstanding accelerator compl...

Accelerators
Opinion
28 November, 2025
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Members of the personnel shall be deemed to have taken note of official news published for the CERN community. Reproduction of all or part of this information by persons or institutions external to the Organization requires the prior approval of the CERN Management. The full list of official news is available here.