CERN

CERN

@cern.bsky.social

CERN is the European laboratory for particle physics, home to the Large Hadron Collider. linktr.ee/CERN_official

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CERN
@cern.bsky.social

CERN’s first Innovation Hub pilot to open in Belgium 🇧🇪 CERN and POM Limburg, Limburg’s provincial development agency, signed an agreement today to establish the first CERN Innovation Hub pilot at Corda Campus in Hasselt, Belgium. Find out more: home.cern/cerns-first-...

CERN
@cern.bsky.social

The CERN Accelerator School (CAS), in collaboration with the European Spallation Source, is pleased to announce their residential course on Advanced Accelerator Physics. 📍 Helsingborg, Sweden 🗓️ 13 – 25 June 2027 ❗Registration closes 12th April 2027 🔗 Apply now: cas.web.cern.ch

CERN
@cern.bsky.social

The journey of a magnet back to the surface 🧲 Here we see a 11.5 metres-long magnet weighing 23 tonnes, travelling underground, before being lifted 56 metres to the surface through the ALICE Experiment. Find out more about the road to #HiLumiLHC: home.cern/science/long...

CERN
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In the third and last episode of “Particle Collisions”, we look inside the #LHC to see how the beams are structured and what determines how many collisions happen each second. 🔗 Watch the last episode here: youtu.be/Dv2VtmqI8Jw

CERN
@cern.bsky.social

In the second episode of Particle Collisions, we explore luminosity and cross-section, how they connect an accelerator to the physics it produces, and why particle physicists measure data in "inverse femtobarns". 🔗 Watch the second episode here: youtu.be/xX0K5daByv0

CERN
@cern.bsky.social

CERN and Mistral join forces to accelerate AI for science 💫 CERN, and Mistral have signed a statement of intent to establish a long-term strategic partnership focused on developing foundation models for scientific discovery. Read more: home.cern/cern-and-mis...

CERN
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What happens after a particle collision takes place? Why do we need so many collisions? What can they tell us? In this three-part series, named “Particle collisions”, we address all these questions, and much more. 🔗 Watch the first episode: youtu.be/SqqLN0LgYdg

CERN
@cern.bsky.social

📢 Applications are now open for Grand Prix Resonance Artists and collectives based in Geneva are invited to submit proposals for a two-month residency #AtCERN, to expand their practice and develop a new artistic project in dialogue with the Laboratory’s scientific community.

CERN
@cern.bsky.social

CERN’s newest exhibition is opening to the public 💫 “Why? It matters.” is a free temporary exhibition that combines scientific content, objects, images, interactive displays, and audiovisual installations. Join us #AtCERN, starting tomorrow. 😉 🔗 Find out more: sciencegateway.cern/why

CERN
@cern.bsky.social

Beam tests boost #FCC detector technologies 🔬 The recent beam tests #AtCERN offered the first opportunity to evaluate two new calorimeter technologies under study for International Detector for Electron Accelerator (IDEA), both of which showed promise for future large-scale developments.

CERN
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The 2026 Nobel Prize in #physics has been awarded to Francis Halzen for his contributions to the IceCube Neutrino Observatory, which discovered high-energy neutrinos coming from far beyond our Solar System. IceCube is a CERN Recognized Experiment. Read more: home.cern/cern-congrat...

CERN
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The image shows the IceCube Neutrino Observatory in Antarctica. (Credit: Ilya Bodo, IceCube/NSF)

CERN
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CERN entrepreneurship highlighted in global innovation report 🚀 The 2026 Global Innovation Index puts the spotlight on CERN Venture Connect (CVC), a programme that connects entrepreneurs with CERN technologies, experts, and partners to turn scientific innovation into real-world solutions.

CERN
@cern.bsky.social

First petals installed in the ATLAS Inner Tracker Strips Endcap 💫 A major milestone has been reached in the construction of the @atlasexperiment.bsky.social Inner Tracker (ITk), with the installation of the first nine ‘petals’ of the ITk Strips Endcap at DESY in Germany.

CERN
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The installation began on 14 September, and on 28 September the ninth petal was successfully inserted into one of the endcap structures, marking the launch of the full-scale integration phase. Read more: home.cern/science/long... #DEatCERN

CERN
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Happy birthday CERN! 🎉 #OnThisDay 72 years ago, CERN officially came into being, bringing together 12 founding Member States with a shared vision for science and international collaboration. Discover the story behind 72 years of science: home.cern/about/who-we...

CERN
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Predicting the economic impact of the #HiLumiLHC 📈 The upgrade of the Large Hadron Collider is expected to return nearly twice its cost to society. Read more: home.cern/predicting-t... 📸 Cédric Favero/CERN 2025 Photowalk

CERN
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CERN’s Isotope Separator On-Line facility (ISOLDE) is undergoing a transformation, to consolidate and upgrade the transfer line connecting it to the Proton Synchrotron Booster. The transfer line is being reconfigured to deliver 2 GeV proton beams to ISOLDE.

CERN
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Welcome to the September/October edition of CERN Courier 💫 This issue reports on the projected socioeconomic returns of the #HiLumiLHC, on a first-principles computation of the strong coupling, and much more. Read more: cerncourier.com

CERN
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CERN launches its new public events season 💫 At a time when CERN is preparing for the #HiLumiLHC, the new public events season named Faisceaux d’avenir (Beams of Tomorrow), looks to the future of science and explores its connections with society. 🔗 voisins.cern/en/faisceaux-davenir/

CERN
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Exceptional transport operations to make way for #HiLumiLHC 💫 The first two massive components of the Large Hadron Collider (#LHC) have been removed from the accelerator tunnel following a complex handling operation. Find out more: home.cern/exceptional-...

CERN
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All CERN accelerators now are on the road to #HiLumiLHC 💫 The accelerator complex and Antimatter Factory delivered their last beams, marking the end of the #LHCRun3 and the start of major upgrade work to prepare for the #HiLumiLHC era. Find out more: home.cern/all-cern-acc...

CERN
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The Alpha Magnetic Spectrometer (AMS) is a particle-physics detector attached to the outside of the ISS, searching for Dark Matter, #antimatter and missing matter. Here we see “Layer-0”, a new layer of silicon sensors which will be mounted on top of the AMS while it orbits Earth on the ISS.

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CERN
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The tracker is scheduled to fly to the Space Station in 2027 aboard a SpaceX Cargo Dragon, where it will be installed on top of AMS using the ISS’s robotic arm. A series of spacewalks (EVAs) will be required to complete its mechanical and electrical connection to AMS.

CERN
@cern.bsky.social

The Alpha Magnetic Spectrometer (AMS) is a particle-physics detector attached to the outside of the ISS, searching for Dark Matter, #antimatter and missing matter. Here we see “Layer-0”, a new layer of silicon sensors which will be mounted on top of the AMS while it orbits Earth on the ISS.

CERN
@cern.bsky.social

From 28 June to 27 July, Layer-0 was hung from a robotic arm in CERN’s North Area undergoing final tests before spaceflight. Layer-0 measures the charge sign and momentum of charged particles and has been developed by the AMS collaboration #AtCERN as part of the upgrade of the AMS detector.

CERN
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77 tonnes on the move 🚚 On 22 July, the 77-tonne JFSU-C, a shielding component used in the @atlasexperiment.bsky.social , was transported from the ATLAS cavern to Building 191 – the technical workshop and integration facility used for assembling and testing large components of the experiment.

CERN
@cern.bsky.social

There, the shielding will undergo robotic machining as part of the preparations for the High-Luminosity LHC (#HiLumiLHC) and it will be modified to make space for additional services before returning to ATLAS in April 2027. Find out more: home.cern/77-tonnes-of...

CERN
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ATLAS and CMS narrow in on twin Higgs production 🔎 Finding one #HiggsBoson was hard enough, but physicists at the Large Hadron Collider (#LHC) are hunting for something even more elusive: pairs of Higgs bosons.

CERN
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n_TOF experiment sheds light on ancient stardust ✨ The first experimental determination of the neutron capture of niobium-94 by n_TOF researchers marks a milestone in efforts to understand the composition of ancient stardust. Read more: home.cern/n_tof-experi...

CERN
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Training the world’s future quantum experts 💪 From 10 to 12 July 2026, CERN and the Open Quantum Institute (OQI) hosted the second edition of the Quantum Materials Hackathon, which brought together 34 students of over 30 nationalities. Find out more: home.cern/training-the...

CERN
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For only the third time since it began operating in 2008, the Large Hadron Collider (#LHC) is slowly being returned to room temperature after being kept at close to -271°C, just above absolute zero. Read more more: home.cern/science/long...

CERN
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With the LHC at room temperature, technicians and engineers will be able to work on the accelerator as it is transformed into the #HiLumiLHC during LS3, a phase of major maintenance and upgrade work.