Category: Engineering
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CERN levels up with new superconducting karts
The race is on to test new vehicles in the underground Large Hadron Collider tunnel, ahead of major works starting this summer
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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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Roger Perret (1951 – 2025)
Roger Perret(1951 – 2025) — We are deeply saddened to announce the passing of Roger Perret on 20 December 2025. A mechanical design engineer of exceptional expertise and professionalism, Roger joined CERN in 1975, where he served with distinction until his retirement in 2010. Over his 35-year career, within what later became the EN-MME Design
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Nicolaas Kos (1965 – 2025)
Nicolaas Kos(1965 – 2025) — Nicolaas “Nico” Kos began his career at CERN in 1994 with technical responsibilities for vacuum-component contracts for LEP2, liaising with European industry to ensure the highest standards. A year later, he joined the LHC project, quickly becoming a key member in the development of beam screens, overseeing prototypes, contract negotiations
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Lift off: CERN engineer travels to space
CERN engineer Sławosz Uznański-Wiśniewski, now an ESA astronaut, has just taken off for the International Space Station aboard a SpaceX Dragon spacecraft launched from NASA’s Kennedy Space Center
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Joseph Tagg (1982 – 2025)
Joseph Tagg(1982 – 2025) — It is with deep sorrow that we announce the passing of Joseph Tagg, an esteemed engineer, colleague and friend, who died on 10 June 2025 at the age of 43. Joseph was a cornerstone of the Measurement Test and Analysis (MTA) section in the Beams (BE) Controls, Electronics and Mechatronics
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Stefano Mazzoni (1978–2025)
Stefano Mazzoni(1978–2025) — We are deeply saddened to learn of the death of Stefano Mazzoni. Stefano left an indelible mark at CERN, where he worked within the Beam Instrumentation group. From his arrival on 1 September 2012, as a physicist specialising in optics and lasers, Stefano quickly distinguished himself through his exceptional expertise and dedication.
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John Pett (1942 – 2024)
John Pett(1942 – 2024) — It is with deep sadness that we share the news of the loss of our friend and colleague, John Pett, former member and leader of the LHC Power Converter group. He was an important member of the group, contributing with his great experience, knowledge and efforts in innovation. John was
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CERN signs long-term solar power agreements
Projects can now begin so that 140 GWh/year – about 10% of CERN’s annual electricity consumption during accelerator operation years – will be provided by renewable sources from 2027
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A test stand for the High-Luminosity LHC
The major upgrade of the LHC will be tested in an above-ground facility that has recently had its first superconducting system installed