On 21 June 2025, Slovenia became the 25th full member of the European Organization for Nuclear Research (CERN), marking a milestone achievement for Slovenian science, education, and technological development. This is a recognition of the long-standing work of Slovenian scientists who have contributed their knowledge and dedication to the advancement of particle physics and helped establish Slovenia’s presence in the international scientific community.
Founded in 1954, CERN is the world’s leading institution for exploring the fundamental structure of the universe. It operates the largest and most powerful particle accelerator in the world—the Large Hadron Collider (LHC)—and brings together over 17,000 researchers from more than 100 countries. Full membership allows Slovenia to directly participate in breakthrough research, co-govern scientific infrastructure, and contribute to the strategic decision-making of one of the world’s most advanced scientific institutions.
Membership in CERN offers tangible opportunities for Slovenian researchers, engineers, students, and companies. Slovenian scientists will gain greater access to leading experiments, young researchers will benefit from training and scholarship programmes, and companies will be able to compete for tenders in high-tech fields such as engineering, IT, and advanced manufacturing. This strengthens Slovenia’s position as a country that understands the strategic importance of investing in knowledge, technology, and international cooperation.
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Slovenia became the 25th full member of the European Organization for Nuclear Research (CERN). Photo: Maximilien Brice, Piotr Traczyk
At the official ceremony marking Slovenia’s accession to full membership, Prime Minister Dr Robert Golob emphasised the broader significance of this achievement: “In an age where too many build walls, we choose to build knowledge. At a time of growing divisions, we invest in what unites."
As the Slovenian flag was raised in front of CERN, he added: "It represents a nation proud to think beyond itself. A country that believes science can unite where politics divides. A people ready to co-create not only discoveries, but above all, a more peaceful world."
Particle physics does not only seek answers to the fundamental questions of the universe and matter—it also drives transformative technologies, from the internet and advanced medical diagnostics to data processing and the development of new materials. With full CERN membership, Slovenia becomes a co-creator of these global changes.
This is a decision of long-term significance, reaffirming our commitment to science as the foundation of progress, cooperation, and peace.
Date: 3. July 2025
Time to read: 3 min
