CERN
@cern.bsky.social
CERN is the European laboratory for particle physics, home to the Large Hadron Collider.
linktr.ee/CERN_official
linktr.ee/CERN_official
📣 Vote for your favourite physics picture
📸 Last year, CERN opened its doors to 17 photographers and invited them to explore, through their lens, the accelerators of tomorrow.
📸 Last year, CERN opened its doors to 17 photographers and invited them to explore, through their lens, the accelerators of tomorrow.
January 16, 2026 at 11:00 AM
📣 Vote for your favourite physics picture
📸 Last year, CERN opened its doors to 17 photographers and invited them to explore, through their lens, the accelerators of tomorrow.
📸 Last year, CERN opened its doors to 17 photographers and invited them to explore, through their lens, the accelerators of tomorrow.
Eliane was a central and influential figure in CERN’s early history, serving from the Laboratory’s founding years as the Director-General’s trusted executive assistant.
She made major contributions to the Organisation’s operations, international relations, and public image during those early days.
She made major contributions to the Organisation’s operations, international relations, and public image during those early days.
January 15, 2026 at 8:20 AM
Eliane was a central and influential figure in CERN’s early history, serving from the Laboratory’s founding years as the Director-General’s trusted executive assistant.
She made major contributions to the Organisation’s operations, international relations, and public image during those early days.
She made major contributions to the Organisation’s operations, international relations, and public image during those early days.
#ThrowbackThursday to the winter of 1977 💫
Here we see Eliane de Modzelewska with her colleagues, finalising gifts for retiring Council members, Wolfgang Gentner and Jan Hendrik Bannier.
#FunFact: the gifts were made from pieces of glass that once formed part of a bubble chamber window.
Here we see Eliane de Modzelewska with her colleagues, finalising gifts for retiring Council members, Wolfgang Gentner and Jan Hendrik Bannier.
#FunFact: the gifts were made from pieces of glass that once formed part of a bubble chamber window.
January 15, 2026 at 8:20 AM
#ThrowbackThursday to the winter of 1977 💫
Here we see Eliane de Modzelewska with her colleagues, finalising gifts for retiring Council members, Wolfgang Gentner and Jan Hendrik Bannier.
#FunFact: the gifts were made from pieces of glass that once formed part of a bubble chamber window.
Here we see Eliane de Modzelewska with her colleagues, finalising gifts for retiring Council members, Wolfgang Gentner and Jan Hendrik Bannier.
#FunFact: the gifts were made from pieces of glass that once formed part of a bubble chamber window.
Advancing cancer therapy with next-generation radionuclides
The PRISMAP programme, coordinated by CERN, has provided 159 radionuclide batches for cancer research over the past five years.
The PRISMAP programme, coordinated by CERN, has provided 159 radionuclide batches for cancer research over the past five years.
January 14, 2026 at 12:03 PM
Advancing cancer therapy with next-generation radionuclides
The PRISMAP programme, coordinated by CERN, has provided 159 radionuclide batches for cancer research over the past five years.
The PRISMAP programme, coordinated by CERN, has provided 159 radionuclide batches for cancer research over the past five years.
Do you recognise any of these locations?
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns and the SM18 test facility.
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns and the SM18 test facility.
January 14, 2026 at 9:08 AM
Do you recognise any of these locations?
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns and the SM18 test facility.
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns and the SM18 test facility.
POV: you walk through CERN’s labs 👣
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Theodore Lianopoulos during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Theodore Lianopoulos
Image size has been adjusted to fit platform requirements.
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Theodore Lianopoulos during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Theodore Lianopoulos
Image size has been adjusted to fit platform requirements.
January 14, 2026 at 9:08 AM
POV: you walk through CERN’s labs 👣
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Theodore Lianopoulos during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Theodore Lianopoulos
Image size has been adjusted to fit platform requirements.
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Theodore Lianopoulos during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Theodore Lianopoulos
Image size has been adjusted to fit platform requirements.
Kickstart your future in science 🚀
Have you ever wondered what it’s like to conduct your own experiment at CERN?
High-school students from all over the world can now apply for the Beamline for Schools (#BL4S) competition.
Have you ever wondered what it’s like to conduct your own experiment at CERN?
High-school students from all over the world can now apply for the Beamline for Schools (#BL4S) competition.
January 13, 2026 at 1:01 PM
Kickstart your future in science 🚀
Have you ever wondered what it’s like to conduct your own experiment at CERN?
High-school students from all over the world can now apply for the Beamline for Schools (#BL4S) competition.
Have you ever wondered what it’s like to conduct your own experiment at CERN?
High-school students from all over the world can now apply for the Beamline for Schools (#BL4S) competition.
Have you read the new issue of #AcceleratingNews? 🧐
It features news on the High-Luminosity #LHC, the proposed electron-positron Future Circular Collider (FCC-ee), the ongoing update of the European Strategy for Particle Physics, alternative future colliders, events, and much more.
It features news on the High-Luminosity #LHC, the proposed electron-positron Future Circular Collider (FCC-ee), the ongoing update of the European Strategy for Particle Physics, alternative future colliders, events, and much more.
January 12, 2026 at 2:40 PM
Have you read the new issue of #AcceleratingNews? 🧐
It features news on the High-Luminosity #LHC, the proposed electron-positron Future Circular Collider (FCC-ee), the ongoing update of the European Strategy for Particle Physics, alternative future colliders, events, and much more.
It features news on the High-Luminosity #LHC, the proposed electron-positron Future Circular Collider (FCC-ee), the ongoing update of the European Strategy for Particle Physics, alternative future colliders, events, and much more.
It features improved granularity, enhanced radiation resistance and extended tracking coverage, integrating silicon pixel and strip layers. These are enabled by advanced technologies such as serial powering and specialised readout chips.
January 12, 2026 at 8:30 AM
It features improved granularity, enhanced radiation resistance and extended tracking coverage, integrating silicon pixel and strip layers. These are enabled by advanced technologies such as serial powering and specialised readout chips.
Here we see the Inner Tracker of the @atlasexperiment.bsky.social (ATLAS ITk).
This new all-silicon inner detector of the ATLAS experiment at CERN replaces the previous one to cope with the higher luminosity of the #HiLumiLHC – the successor to CERN’s Large Hadron Collider.
This new all-silicon inner detector of the ATLAS experiment at CERN replaces the previous one to cope with the higher luminosity of the #HiLumiLHC – the successor to CERN’s Large Hadron Collider.
January 12, 2026 at 8:30 AM
Here we see the Inner Tracker of the @atlasexperiment.bsky.social (ATLAS ITk).
This new all-silicon inner detector of the ATLAS experiment at CERN replaces the previous one to cope with the higher luminosity of the #HiLumiLHC – the successor to CERN’s Large Hadron Collider.
This new all-silicon inner detector of the ATLAS experiment at CERN replaces the previous one to cope with the higher luminosity of the #HiLumiLHC – the successor to CERN’s Large Hadron Collider.
4️⃣ Herwig Schopper (former CERN Director-General), Henri Laporte, Aldo Michelini, Ugo Amaldi and Jack Steinberger inside the mock-up tunnel of the Large Electron–Positron Collider (1983)
5️⃣ The fire brigade, part of the CERN Safety Group (1961)
6️⃣ The 174th session of the CERN Council Committee
5️⃣ The fire brigade, part of the CERN Safety Group (1961)
6️⃣ The 174th session of the CERN Council Committee
January 8, 2026 at 12:53 PM
4️⃣ Herwig Schopper (former CERN Director-General), Henri Laporte, Aldo Michelini, Ugo Amaldi and Jack Steinberger inside the mock-up tunnel of the Large Electron–Positron Collider (1983)
5️⃣ The fire brigade, part of the CERN Safety Group (1961)
6️⃣ The 174th session of the CERN Council Committee
5️⃣ The fire brigade, part of the CERN Safety Group (1961)
6️⃣ The 174th session of the CERN Council Committee
The good old days 🔙
This #ThrowbackThursday, we take a look at different sides of the Laboratory, highlighting the wide range of professions that kept the Organization running in earlier decades.
This #ThrowbackThursday, we take a look at different sides of the Laboratory, highlighting the wide range of professions that kept the Organization running in earlier decades.
January 8, 2026 at 12:53 PM
The good old days 🔙
This #ThrowbackThursday, we take a look at different sides of the Laboratory, highlighting the wide range of professions that kept the Organization running in earlier decades.
This #ThrowbackThursday, we take a look at different sides of the Laboratory, highlighting the wide range of professions that kept the Organization running in earlier decades.
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns, and the SM18 test facility.
January 7, 2026 at 8:05 AM
These photos take us through different areas of the Laboratory, including the superconducting laboratory, CERN’s Main Workshop, the #HiLumiLHC underground caverns, and the SM18 test facility.
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Laurent Cabot during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Laurent Cabot
Image size has been adjusted to fit platform requirements.
📸 by Laurent Cabot
Image size has been adjusted to fit platform requirements.
January 7, 2026 at 8:05 AM
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Laurent Cabot during the 2025 CERN Photowalk competition, held last year. #PhysPics25
📸 by Laurent Cabot
Image size has been adjusted to fit platform requirements.
📸 by Laurent Cabot
Image size has been adjusted to fit platform requirements.
📣 Applications are open for the 2026 STEAM Academy
📅 Application deadline: 15 February 2026
🛏️ On-site accommodation and meals for the full 10 weeks
📩 Questions: [email protected]
🔗 Apply now: nextgentriggers.web.cern.ch/cern-steam-academy/
📅 Application deadline: 15 February 2026
🛏️ On-site accommodation and meals for the full 10 weeks
📩 Questions: [email protected]
🔗 Apply now: nextgentriggers.web.cern.ch/cern-steam-academy/
January 6, 2026 at 8:43 AM
📣 Applications are open for the 2026 STEAM Academy
📅 Application deadline: 15 February 2026
🛏️ On-site accommodation and meals for the full 10 weeks
📩 Questions: [email protected]
🔗 Apply now: nextgentriggers.web.cern.ch/cern-steam-academy/
📅 Application deadline: 15 February 2026
🛏️ On-site accommodation and meals for the full 10 weeks
📩 Questions: [email protected]
🔗 Apply now: nextgentriggers.web.cern.ch/cern-steam-academy/
CERN wishes you a very #HappyNewYear!
In 2026, we will prepare for the installation of the High-Luminosity Large Hadron Collider (#HiLumiLHC) – the successor to the world’s most powerful particle accelerator – while shaping the next generation of discovery machines.
In 2026, we will prepare for the installation of the High-Luminosity Large Hadron Collider (#HiLumiLHC) – the successor to the world’s most powerful particle accelerator – while shaping the next generation of discovery machines.
December 31, 2025 at 11:00 PM
CERN wishes you a very #HappyNewYear!
In 2026, we will prepare for the installation of the High-Luminosity Large Hadron Collider (#HiLumiLHC) – the successor to the world’s most powerful particle accelerator – while shaping the next generation of discovery machines.
In 2026, we will prepare for the installation of the High-Luminosity Large Hadron Collider (#HiLumiLHC) – the successor to the world’s most powerful particle accelerator – while shaping the next generation of discovery machines.
Ho, ho, ho under CERN’s mistletoe 🧑🎄
Today’s #PhotoOfTheWeek features CERN’s "Father Christmas" team touring the Laboratory just before Christmas Eve, all the way from the #LHC tunnel to the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social detectors.
Today’s #PhotoOfTheWeek features CERN’s "Father Christmas" team touring the Laboratory just before Christmas Eve, all the way from the #LHC tunnel to the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social detectors.
December 24, 2025 at 9:00 AM
Ho, ho, ho under CERN’s mistletoe 🧑🎄
Today’s #PhotoOfTheWeek features CERN’s "Father Christmas" team touring the Laboratory just before Christmas Eve, all the way from the #LHC tunnel to the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social detectors.
Today’s #PhotoOfTheWeek features CERN’s "Father Christmas" team touring the Laboratory just before Christmas Eve, all the way from the #LHC tunnel to the @atlasexperiment.bsky.social and @cmsexperiment.bsky.social detectors.
CERN Highlights 2025
As the year comes to a close, we reflect on some of the highlights from this remarkable year at CERN. We are looking forward to 2026 as we continue to search for what’s beyond the horizon.
Watch here: youtu.be/X_OoXSMXyLg?...
As the year comes to a close, we reflect on some of the highlights from this remarkable year at CERN. We are looking forward to 2026 as we continue to search for what’s beyond the horizon.
Watch here: youtu.be/X_OoXSMXyLg?...
December 19, 2025 at 3:49 PM
CERN Highlights 2025
As the year comes to a close, we reflect on some of the highlights from this remarkable year at CERN. We are looking forward to 2026 as we continue to search for what’s beyond the horizon.
Watch here: youtu.be/X_OoXSMXyLg?...
As the year comes to a close, we reflect on some of the highlights from this remarkable year at CERN. We are looking forward to 2026 as we continue to search for what’s beyond the horizon.
Watch here: youtu.be/X_OoXSMXyLg?...
This is TELMAX (Test Line for Machine and Antimatter eXperiments), the world’s first test beamline using antiprotons, located at CERN’s Antimatter Factory.
December 19, 2025 at 7:30 AM
This is TELMAX (Test Line for Machine and Antimatter eXperiments), the world’s first test beamline using antiprotons, located at CERN’s Antimatter Factory.
Private donors pledge 860 million euros for CERN’s Future Circular Collider
A consortium of private donors (individuals and philanthropic foundations) have agreed to support the proposed Future Circular Collider at CERN
Find out more: home.cern/news/press-r...
A consortium of private donors (individuals and philanthropic foundations) have agreed to support the proposed Future Circular Collider at CERN
Find out more: home.cern/news/press-r...
December 18, 2025 at 2:05 PM
Private donors pledge 860 million euros for CERN’s Future Circular Collider
A consortium of private donors (individuals and philanthropic foundations) have agreed to support the proposed Future Circular Collider at CERN
Find out more: home.cern/news/press-r...
A consortium of private donors (individuals and philanthropic foundations) have agreed to support the proposed Future Circular Collider at CERN
Find out more: home.cern/news/press-r...
The magic of Christmas #AtCERN 🎄
This #ThrowbackThursday brings you back to winter celebrations at the Laboratory over the years.Which picture is your favourite? 👇
This #ThrowbackThursday brings you back to winter celebrations at the Laboratory over the years.Which picture is your favourite? 👇
December 18, 2025 at 9:00 AM
The magic of Christmas #AtCERN 🎄
This #ThrowbackThursday brings you back to winter celebrations at the Laboratory over the years.Which picture is your favourite? 👇
This #ThrowbackThursday brings you back to winter celebrations at the Laboratory over the years.Which picture is your favourite? 👇
A cryogenic winter for tomorrow’s accelerator 💫
The first large refrigerators for the #HiLumiLHC have been installed. Here we see the delivery of a cold box on the @atlasexperiment.bsky.social site.
Find out more: home.cern/news/news/ac...
The first large refrigerators for the #HiLumiLHC have been installed. Here we see the delivery of a cold box on the @atlasexperiment.bsky.social site.
Find out more: home.cern/news/news/ac...
December 18, 2025 at 7:52 AM
A cryogenic winter for tomorrow’s accelerator 💫
The first large refrigerators for the #HiLumiLHC have been installed. Here we see the delivery of a cold box on the @atlasexperiment.bsky.social site.
Find out more: home.cern/news/news/ac...
The first large refrigerators for the #HiLumiLHC have been installed. Here we see the delivery of a cold box on the @atlasexperiment.bsky.social site.
Find out more: home.cern/news/news/ac...
CERN hits one exabyte of stored experimental data from the LHC #LHC 📈
One million terabytes of experimental data from the Large Hadron Collider have now been sent to the CERN storage system.
Find our more: home.cern/news/news/co...
One million terabytes of experimental data from the Large Hadron Collider have now been sent to the CERN storage system.
Find our more: home.cern/news/news/co...
December 17, 2025 at 9:44 AM
CERN hits one exabyte of stored experimental data from the LHC #LHC 📈
One million terabytes of experimental data from the Large Hadron Collider have now been sent to the CERN storage system.
Find our more: home.cern/news/news/co...
One million terabytes of experimental data from the Large Hadron Collider have now been sent to the CERN storage system.
Find our more: home.cern/news/news/co...
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Erik Kuna during the 2025 CERN Photowalk competition, held earlier this year. #PhysPics25
Image size has been adjusted to fit platform requirements.
Image size has been adjusted to fit platform requirements.
December 17, 2025 at 8:18 AM
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Erik Kuna during the 2025 CERN Photowalk competition, held earlier this year. #PhysPics25
Image size has been adjusted to fit platform requirements.
Image size has been adjusted to fit platform requirements.
Celebrating two decades of global scientific computing
Developed to handle the vast amounts of data of the #LHC experiments, the Worldwide LHC Computing Grid (WLCG) has significantly marked the landscape of distributed computing.
Find out more: home.cern/news/news/co...
Developed to handle the vast amounts of data of the #LHC experiments, the Worldwide LHC Computing Grid (WLCG) has significantly marked the landscape of distributed computing.
Find out more: home.cern/news/news/co...
December 16, 2025 at 11:00 AM
Celebrating two decades of global scientific computing
Developed to handle the vast amounts of data of the #LHC experiments, the Worldwide LHC Computing Grid (WLCG) has significantly marked the landscape of distributed computing.
Find out more: home.cern/news/news/co...
Developed to handle the vast amounts of data of the #LHC experiments, the Worldwide LHC Computing Grid (WLCG) has significantly marked the landscape of distributed computing.
Find out more: home.cern/news/news/co...