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News

Groundbreaking CMS calorimeter for the High-Luminosity LHC

CMS has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built

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Experiments
29 January, 2026
Experiments
News
29 January, 2026

Accelerator Report: Run 3 operations counting down to LS3

Linac4 and the PS Booster have already completed their standalone beam commissioning successfully and have handed over the baton to the PS

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Accelerators
29 January, 2026
Accelerators
News
29 January, 2026

Heating homes with the world’s largest particle accelerator

Now operational, a new heat exchange system is reusing hot water from part of the Large Hadron Collider’s cooling system to heat homes and businesses in the local area

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At CERN
28 January, 2026

Presidential visits to CERN

The President of Lithuania and the President of Armenia visited CERN on 19 January

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At CERN
28 January, 2026
At CERN
News
28 January, 2026

Computer Security: A final dash to protect your account

We already discussed mandatory requirements for IT service managers in a past issue of the Bulletin. This time we present upcoming changes to passwords and improvements to two-factor authentication

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Computing
27 January, 2026

European labs get aligned at CERN

Eleven laboratories have all come to CERN to measure a girder, using their state-of-the-art equipment to establish a common definition of alignment uncertainty

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Engineering
26 January, 2026
Engineering
News
26 January, 2026

Probing asteroids with particle beams

CERN’s HiRadMat facility is helping scientists to understand how asteroid materials behave under extreme conditions

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Accelerators
21 January, 2026
Accelerators
News
21 January, 2026

What can you do with 380 million Higgs bosons?

The latest edition of the CERN Courier magazine explores what the High-Luminosity LHC will be able to say about the distant past and future of the Universe

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Physics
16 January, 2026

Accelerator Report: A very busy technical stop ahead of Long Shutdown 3

This technical stop is particularly intense, being both shorter than usual, to maximise the limited time for physics, and very busy, to make essential preparations for LS3, which begins in June

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Accelerators
16 January, 2026
Accelerators
News
16 January, 2026

Help shape how CERN improves

New year, new ways of working. Here’s your chance to suggest which processes could be improved at CERN

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At CERN
16 January, 2026
At CERN
News
16 January, 2026