Smarter decisions at the speed of collisions 💫 Machine learning is reshaping how the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social filter collisions in real time Find out more: home.cern/experiments/...

𝗣𝘂𝗯𝗹𝗶𝗰 𝗪𝗲𝗯𝗶𝗻𝗮𝗿: 𝗘𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝗮𝗹 𝗜𝗺𝗽𝗮𝗰𝘁𝘀 𝗼𝗳 𝗕𝗶𝗴 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 Join our panel of leading researchers for a SC4RC public webinar to explore the environmental impact of large-scale computing and solutions for a more sustainable future. Join live: www.youtube.com/live/JQbdZ7m... #sc4rc #greencomputing

Arts at CERN and the Nobel Prize Museum are pleased to announce that Lithuanian artist Emilija Škarnulytė has been selected as the recipient of the Collide Stockholm residency award. 🔗 home.cern/news/news/cern/arts-cern-and-nobel-prize-museum-announce-collide-stockholm-international-residency

CERN’s Medipix3 technology on track to help more patients A portable photon-counting CT scanner developed using CERN’s Medipix3 technology receives FDA clearance, paving the way for broader clinical adoption. Find out more: home.cern/news/news/kn...

The @atlasexperiment.bsky.social sets record limits on Higgs boson’s self-interaction The result is based on over 300 inverse femtobarns of proton–proton collision data, which is equivalent to 30 000 trillion collisions Find out more: home.cern/news/news/ph...

ATLAS acts as a cosmic-ray laboratory ✨ The @atlasexperiment.bsky.social reports its first measurement of proton–oxygen collisions at the #LHC, which recreate cosmic-ray interactions with Earth’s atmosphere. Find out more: home.cern/news/news/ph...

BIG NEWS! ✏️✨ We are handing the pen to students. We are launching a student writing contest, with the three winning articles to be published in Science in School (+ additional prizes). Find all the details here: scienceinschool.org/article/2026...

Muon g-2 Experiment Pioneers Win Breakthrough Prize in Fundamental Physics Recognition honors experiments and scientific collaborations at three institutions that explored the subtle wobble of a subatomic particle Find out more: home.cern/news/press-r...

CMS looks deep inside quarks 🔎 The CMS Collaboration (@cmsexperiment.bsky.social) has probed deep inside quarks to search for potential building blocks within them. Find out more: home.cern/news/news/ph...

Issue 77 is out – it's a very special edition! 🎉 Every article comes directly from one of our funders: eight of Europe’s largest research facilities! Running through all articles like a golden thread is one theme: light. Dive right in: scienceinschool.org/issue/issue-... #EduSky

Chile becomes an Associate Member State of CERN 🇨🇱 Find out more: home.cern/news/news/ce...

At 00:35 CEST today, the Artemis II mission successfully launched, marking the first human journey to the Moon since 1972. Six Timepix chips developed #AtCERN will measure the radiation environment inside the spacecraft that will orbit the Moon during @NASA’s Artemis II mission.

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. Find out more about the new superconducting karts: home.cern/news/news/en...

The questions that matter: #Antimatter edition On 24 March, a team of scientists from the BASE experiment at CERN successfully transported a trap filled with antiprotons in a truck across the Laboratory’s main site.

Earlier this week, a team of scientists from the BASE experiment #AtCERN succeeded in transporting antiprotons in a truck across the Laboratory’s main site. Christian Smorra explains how the BASE-STEP portable antiproton trap captures and stores antiprotons.

CMS strengthens the case for toponium A new independent measurement by the @cmsexperiment.bsky.social at the #LHC is consistent with the existence of the most massive composite particle ever observed, the momentary union of a top quark and its antiquark. Find out more: home.cern/news/news/ph...

CERN to host Europe’s flagship open access publishing platform Find out more: home.cern/news/news/ce...

Antimatter on the move 🚛 Today, in a world first, a team of scientists from the BASE experiment #AtCERN succeeded in transporting antiprotons in a truck across the Laboratory’s main site. Watch the full video: www.youtube.com/watch?v=XzBP...

BASE experiment at CERN succeeds in transporting antimatter The experiment successfully transported a trap filled with antiprotons across CERN’s main site, a remarkable first step towards delivering antimatter to other European laboratories. Find out more: home.cern/news/press-r...

ALICE sees new sign of primordial plasma in proton collisions The ALICE Collaboration takes a step further in addressing the question of whether a quark–gluon plasma can be formed in proton–proton and proton–nucleus collisions. Find out more: home.cern/news/news/ph...

ATLAS sets strong limits on #supersymmetry Using machine-learning techniques, the ATLAS Collaboration has searched deep for signs of particles that could help answer some of the greatest mysteries of physics Find out more: home.cern/news/news/ph... @atlasexperiment.bsky.social #LHC

The test stand for the #HiLumiLHC, the IT String, just hit its operating temperature: 1.9 Kelvin – only two degrees above the absolute zero, the coldest temperature possible. Find out more: home.cern/news/press-release/accelerators/hilumi-lhc-full-scale-tests-start

The LHCb Collaboration discovers new proton-like particle Composed of two charm quarks and one down quark, the doubly charmed particle is four times heavier than a proton. Find out more: home.cern/news/news/ex...

The future of physics 💫 Last week, Chiara, an accelerator physicist, took us to the CERN Control Centre (CCC) to explain the restart process for the Large Hadron Collider (#LHC).

CERN has 13 new projects funded by the European Union under the Research Infrastructures call of Horizon Europe 🇪🇺 Find out more: cerneu.web.cern.ch/record-year-cern-wins-funding-13-new-eu-projects

Sailing the high energies ⚡ These are the first high-energy collisions recorded by the #LHC experiments in 2026. Representing particle collisions at an energy of 13.6 TeV, these event displays mark the beginning of the experiments’ data-taking season and the final #LHCRun3. #BeamTime

Only a few weeks left to apply ⏱️ Join us for the CERN Accelerator School, in collaboration with Riga Technical University, for a specialised course on Medical Accelerators. 🔔 Application deadline: 13 April 2026 📆 15 - 26 June 2026, Jūrmala, Latvia 🔗 Registration: cas.web.cern.ch

It's time for physics! ⚛️ Stable particle beams returned to the Large Hadron Collider (LHC) at 15:58 CET on Saturday, 7 March, marking the start of the final run of #LHCRun3.

Ready, Set, Collide 💥 The Large Hadron Collider (#LHC) is gearing up to resume proton collisions. In this concluding physics run of #LHCRun3, proton beams will once again be delivered to the LHC experiments.

The NA62 Collaboration has recently refined the measurement of a rare particle decay. Studying the one-in-ten-billion kaon decay allows researchers to stress-test the #StandardModel of particle physics. Find out more: home.cern/news/news/ph...

#HiLumiLHC : full-scale tests start 💫 Listen to Marta Bajko, Head of the High-Luminosity LHC Inner-Triplet (IT) String project, as she explains what will happen in the next weeks. Find out more: home.cern/news/news/ac...

Here we see engineers at CERN assembling a beam screen for the #HiLumiLHC. The beam screen is a device that surrounds the beam to protect neighbouring equipment from heat loads and potential damage caused by the circulating beams.

Highlights from a cosmic odyssey (une Odyssée cosmique) ✨ Last week, for its very first collaboration with CERN, the Antigel festival brought art and science together in a rare and luminous experience. Here we see the highlights of this cosmic journey. #CERN #Antigel #science #art

Back to the future? 🤔 Today’s #ThrowbackThursday takes us back to 1994, when the Large Hadron Collider (LHC) was approved for construction. In these images, we see parts of ramp converters used for testing the superconducting #LHC magnets.

It’s the final countdown 🕕 In just a few weeks, CERN will power up the #LHC for the fifth and final physics run of the #LHCRun3. But what steps must we take before activating the machine? Swipe to discover the five-step plan for waking up a particle collider.

Deep into the detector 👷 Today’s #PhotoOfTheWeek features the @atlasexperiment.bsky.social detector during the year-end technical stop (YETS) – a brief winter switch-off that allows for essential maintenance and upgrades on equipment and detectors, preparing them for the following physics run.

#ArtsAtCERN announces the artist awarded the second Resonance residency Geneva-based French-Congolese artist Monika Emmanuelle Kazi has been selected for the second edition of the Resonance residency #AtCERN. Find out more: home.cern/news/news/ce... 📸 by Loren Tschannen

Scientists #AtCERN have triggered the complex cooldown of a 95-m-long test stand that reproduces the underground configuration of innovative technologies for the LHC’s high-luminosity upgrade. #HiLumiLHC Find out more: home.cern/news/news/accelerators/hilumi-lhc-full-scale-tests-start

Here we see vertical septum magnets, pivotal for directing beams into the Proton Synchrotron Booster (PSB) rings. These magnets facilitate the vertical deflection of the beam from Linac4 into the PS Booster.

Keys to the (physics) city🔑 #ThrowbackThursday to when the symbolic keys for the PS, PSB, and LHC were presented to the then Operations group. The presentation of a symbolic key takes place when the recommissioning of the accelerators starts after a long technical stop of the accelerator complex.

The heart of our operations 🖥️ Today’s #PhotoOfTheWeek showcases the CERN Control Centre (CCC) Here, the operators oversee and manage intricate systems, including the #LHC Cryogenics and CERN Technical Infrastructure.

Machine learning to reveal more about #LHC particle collisions The @cmsexperiment.bsky.social demonstrates that machine learning can outperform traditional methods in the full reconstruction of particle collisions at the Large Hadron Collider. Find out more: home.cern/news/news/ph...

Welcome to @eiroforum.org 👏

Here our scientists are testing the robotic handling of a vacuum module in the ATLAS cavern, part of the preparations for the operation of the High-Luminosity #LHC, the successor to CERN’s flagship accelerator.

Love is in the air at CERN’s HEARTS facility ❤️ This #ValentinesDay, CERN highlights its HEARTS testing facility.

Only one more month to apply 📣 Beamline for Schools (#BL4S) is a physics competition for high-school students worldwide. Hear from last year’s winning teams about their experience.

Happy International Day of Women and Girls in STEM! 🌟🥼 Seulgi is a scientist working on the CMS Experiment at @cern.bsky.social, and here she tells us about her journey in Korean, her mother tongue. youtu.be/UG8NsULsvDg #WomenInScience #WomenInScience2026 #IDWGS #IDWGS2026

Happy International Day of Women and Girls in Science! 👩‍🔬 To celebrate, we asked women from across our member organisations to share one piece of advice they received that helped them get to where they are today. What advice has made an impact on you! Read more: www.eiroforum.org/news/eirofor...

#ThrowbackThursday to August 1972 🎩 Here we see James Lee Byars, an artist who visited CERN during several summers in the early 1970s. He is photographed here on the ISR site, with the water tower in the background.

This year, for the #InternationalDayofWomenandGirlsinScience, we’re celebrating the “sparks” that ignite careers in physics. ⚛️⁠ ⁠ We asked four ATLAS experiment researchers to share what first inspired them. The stories of these women show that the spark for physics can come from anywhere! 👇