CERN
@cern.bsky.social
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CERN is the European laboratory for particle physics, home to the Large Hadron Collider. linktr.ee/CERN_official
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Congrats to Congqiao Li, Christina Wenlu Wang, & Ho Fung Tsoi for rising above a pool of 19 nominees with their exceptional research and winning the 2024 CMS PhD Thesis Award! 🏆

🔗Find out more, including a video of the winners answering questions: cms.cern/news/cms-phd...
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Physicists from around the world and institutes came together to present their recent results and to discuss the exciting future of particle physics.
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In case you missed it, here’s an overview of the 2025 European Physical Society Conference on High Energy Physics, which took place this summer in Marseille, France. #EPSHEP2025

@cnrs-in2p3.bsky.social @epshep2025.bsky.social
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The cleaning took place in the Laboratory II chemical cleaning shop, on CERN’s French site.

#DidYouKnow that materials exposed to the high-energy beams in a particle accelerator must fulfil a demanding checklist of mechanical, electrical and vacuum requirements?
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#ThrowbackThurdsday to 1973 💫

Here we see the cleaning of vacuum chambers for the Super Proton Synchrotron, the second-largest machine in CERN’s accelerator complex. Today, it serves as an acceleration stepping stone between the Proton Synchrotron and the #LHC.
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CERN's Chips: Transforming Science and Society

From pioneering colour X-rays to uncovering art forgeries, semiconductor chips - initially developed for particle physics experiments - are making remarkable societal impacts. Discover how CERN’s Medipix collaborations are driving these innovations.
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It is open six days a week (Tuesday – Sunday) with activities running from 9.00 to 17.00 throughout the year.

Plan your visit: visit.cern
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#FunFact: In less than two years of its opening, CERN Science Gateway welcomed 750.000 visitors from 179 countries.

From public events and science shows, to hands-on experiments and exhibitions, Science Gateway has something for everyone, from ages five and up.
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Happy anniversary #CERNScienceGateway 💫

Today, CERN’s #PhotoOfTheWeek features our science center for education and outreach, which was inaugurated and open to the public two years ago.
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Day in the life of a #BL4S student 💫

Follow Maxime – one of the 2025 Beamline for Schools winners – as he takes us along for a day #AtCERN. 👇
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📣 ‘Tis the season for public events #AtCERN

CERN invites you to join our upcoming events this November. #GenerationHiggs

If you're in the Geneva (Switzerland) area, enjoy a rich cultural programme featuring music, science talks, and more.

Explore the full program: visit.cern/events
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Technologies like this laser are made available to start-ups through the #CERNVentureConnect Programme.
Discover more: report2023-kt.web.cern.ch/venture-tech...
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Co-developed by CERN and Macquarie University, Australia, this innovative laser is a cost-effective technology that emits light with such extraordinary purity that its colour is about a billion times spectrally pure than the human eye can distinguish.
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Here we see a Single-frequency Raman Laser.

This ultra-compact optical system, based on Raman laser conversion, is leveraging the unique properties of diamonds for high-power laser output with an ultra-narrow linewidth.
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The film explores the mysteries of the #HiggsBoson and the #BigBang, celebrating research as a journey of experimentation, emotion, and the transfer of knowledge across generations.
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On 25 September, CERN hosted an exclusive preview screening at #CERNScienceGateway of the documentary “Les vrais chercheurs ne savent pas ce qu’ils cherchent…” directed by Jean-Luc Perreard and Cédric Klapisch.
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Why engage youth in science? 🧑‍🎓

Hear from the directors and special guests – #CERN Director-General Fabiola Gianotti, architect Renzo Piano, and John Elkann, President of Fondazione Agnelli – on why it is important to get the young generation interested in science.
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White Rabbit meets quantum entanglement 🐇⚛️

The CERN-born open-source timing technology is being tested for its potential in quantum networks and secure quantum communication

Find out more: home.cern/news/news/co...
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#FunFact: at the time, there was an actual customs control from the French or Swiss authorities. Nowadays, the checks still exist, but are run by the Organization’s guards.
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#ThrowbackThursday to 1973 at the opening of the tunnel linking Laboratory I and Laboratory II.

#DidYouKnow that CERN’s campus spreads over two countries? The tunnel connected CERN’s Main Site in Switzerland (Laboratory I), to the site in France (Laboratory II) to ensure a fast connection.
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It’s a wrap for #BL4S 2025 💫

From 10 to 24 September, CERN, DESY and the University of Bonn welcomed the winners of the 2025 Beamline for Schools (BL4S) competition.

Find out more: home.cern/news/news/ce...
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The screening was followed by a discussion with #CERN Director-General Fabiola Gianotti, Science Gateway architect Renzo Piano, and John Elkann, President of Fondazione Agnelli.