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
T-minus 8 hours 😁
Join us tonight, at 20:00 CET, to watch nine finalists from around the world step onto the stage at CERN to compete in the world’s longest-running science communication competition.
Join us live: www.youtube.com/live/EZRj71l...
Join us tonight, at 20:00 CET, to watch nine finalists from around the world step onto the stage at CERN to compete in the world’s longest-running science communication competition.
Join us live: www.youtube.com/live/EZRj71l...
November 25, 2025 at 11:30 AM
T-minus 8 hours 😁
Join us tonight, at 20:00 CET, to watch nine finalists from around the world step onto the stage at CERN to compete in the world’s longest-running science communication competition.
Join us live: www.youtube.com/live/EZRj71l...
Join us tonight, at 20:00 CET, to watch nine finalists from around the world step onto the stage at CERN to compete in the world’s longest-running science communication competition.
Join us live: www.youtube.com/live/EZRj71l...
Here we see the SMOG2 installation in the cavern of the @lhcb.bsky.social
SMOG stands for System for Measuring the Overlap with Gas.
SMOG stands for System for Measuring the Overlap with Gas.
November 24, 2025 at 7:19 AM
Here we see the SMOG2 installation in the cavern of the @lhcb.bsky.social
SMOG stands for System for Measuring the Overlap with Gas.
SMOG stands for System for Measuring the Overlap with Gas.
FameLab international final 2025 at CERN
Join us on Tuesday, 25 November 2025 at 8.00 p.m. CET for the FameLab international live final at CERN Science Gateway!
Find out more: home.cern/news/news/ce...
Join us on Tuesday, 25 November 2025 at 8.00 p.m. CET for the FameLab international live final at CERN Science Gateway!
Find out more: home.cern/news/news/ce...
November 21, 2025 at 3:02 PM
FameLab international final 2025 at CERN
Join us on Tuesday, 25 November 2025 at 8.00 p.m. CET for the FameLab international live final at CERN Science Gateway!
Find out more: home.cern/news/news/ce...
Join us on Tuesday, 25 November 2025 at 8.00 p.m. CET for the FameLab international live final at CERN Science Gateway!
Find out more: home.cern/news/news/ce...
Heavy-ion season underway 💪
On 14 November at 3:40 pm, a new #HeavyIon run started at the Large Hadron Collider, colliding lead ions at an energy of 5.36 TeV per nucleon pair.
On 14 November at 3:40 pm, a new #HeavyIon run started at the Large Hadron Collider, colliding lead ions at an energy of 5.36 TeV per nucleon pair.
November 21, 2025 at 11:01 AM
Heavy-ion season underway 💪
On 14 November at 3:40 pm, a new #HeavyIon run started at the Large Hadron Collider, colliding lead ions at an energy of 5.36 TeV per nucleon pair.
On 14 November at 3:40 pm, a new #HeavyIon run started at the Large Hadron Collider, colliding lead ions at an energy of 5.36 TeV per nucleon pair.
#ThrowbackThursday to 1976 👷
Here we see an electrical vehicle called Pefra, which was often used by scientists and technicians to move around the 7km Super Proton Synchrotron’s (SPS) underground tunnel.
Here we see an electrical vehicle called Pefra, which was often used by scientists and technicians to move around the 7km Super Proton Synchrotron’s (SPS) underground tunnel.
November 20, 2025 at 8:10 AM
#ThrowbackThursday to 1976 👷
Here we see an electrical vehicle called Pefra, which was often used by scientists and technicians to move around the 7km Super Proton Synchrotron’s (SPS) underground tunnel.
Here we see an electrical vehicle called Pefra, which was often used by scientists and technicians to move around the 7km Super Proton Synchrotron’s (SPS) underground tunnel.
Breakthrough in antimatter production 💫
A new cooling technique means that the ALPHA experiment at CERN’s Antimatter Factory can produce antihydrogen atoms eight times faster than before.
Find out more: home.cern/news/news/ex...
A new cooling technique means that the ALPHA experiment at CERN’s Antimatter Factory can produce antihydrogen atoms eight times faster than before.
Find out more: home.cern/news/news/ex...
November 20, 2025 at 7:16 AM
Breakthrough in antimatter production 💫
A new cooling technique means that the ALPHA experiment at CERN’s Antimatter Factory can produce antihydrogen atoms eight times faster than before.
Find out more: home.cern/news/news/ex...
A new cooling technique means that the ALPHA experiment at CERN’s Antimatter Factory can produce antihydrogen atoms eight times faster than before.
Find out more: home.cern/news/news/ex...
In this #PhotoOfTheWeek, we take a look at two @nobelprize.org medals, now on display #AtCERN.
Last month, CERN unveiled the Nobel medal of Felix Bloch – CERN's first Director-General – awarded for the development of nuclear magnetic resonance (NMR) methods.
Last month, CERN unveiled the Nobel medal of Felix Bloch – CERN's first Director-General – awarded for the development of nuclear magnetic resonance (NMR) methods.
November 19, 2025 at 9:14 AM
In this #PhotoOfTheWeek, we take a look at two @nobelprize.org medals, now on display #AtCERN.
Last month, CERN unveiled the Nobel medal of Felix Bloch – CERN's first Director-General – awarded for the development of nuclear magnetic resonance (NMR) methods.
Last month, CERN unveiled the Nobel medal of Felix Bloch – CERN's first Director-General – awarded for the development of nuclear magnetic resonance (NMR) methods.
When failure is good news 🖥️
The software managing CERN’s compute workload has handled a massive stress test, far beyond normal operating conditions, designed to simulate the needs of the future.
Find out more: home.cern/news/news/co...
The software managing CERN’s compute workload has handled a massive stress test, far beyond normal operating conditions, designed to simulate the needs of the future.
Find out more: home.cern/news/news/co...
November 19, 2025 at 8:31 AM
When failure is good news 🖥️
The software managing CERN’s compute workload has handled a massive stress test, far beyond normal operating conditions, designed to simulate the needs of the future.
Find out more: home.cern/news/news/co...
The software managing CERN’s compute workload has handled a massive stress test, far beyond normal operating conditions, designed to simulate the needs of the future.
Find out more: home.cern/news/news/co...
CERN celebrates LGBTQ+ in STEM Day
Today we celebrate and highlight the work of and barriers facing LGBTQIA+ people in science, technology, engineering and maths. To mark the date, the Progress Pride flag will fly above the Esplanade des Particules for the third year.
🔗 home.cern/news/news/ce...
Today we celebrate and highlight the work of and barriers facing LGBTQIA+ people in science, technology, engineering and maths. To mark the date, the Progress Pride flag will fly above the Esplanade des Particules for the third year.
🔗 home.cern/news/news/ce...
November 18, 2025 at 1:51 PM
CERN celebrates LGBTQ+ in STEM Day
Today we celebrate and highlight the work of and barriers facing LGBTQIA+ people in science, technology, engineering and maths. To mark the date, the Progress Pride flag will fly above the Esplanade des Particules for the third year.
🔗 home.cern/news/news/ce...
Today we celebrate and highlight the work of and barriers facing LGBTQIA+ people in science, technology, engineering and maths. To mark the date, the Progress Pride flag will fly above the Esplanade des Particules for the third year.
🔗 home.cern/news/news/ce...
Every year, CERN offers various professional development programmes for teachers. Last month, it was the turn of French teachers, who came to CERN to keep up-to-date with the latest developments in particle physics, and experience a dynamic research environment.
November 18, 2025 at 8:12 AM
Every year, CERN offers various professional development programmes for teachers. Last month, it was the turn of French teachers, who came to CERN to keep up-to-date with the latest developments in particle physics, and experience a dynamic research environment.
‘Tis the season of heavy ions
Last Friday at 3.40 pm, a new #HeavyIon run began at the Large Hadron Collider, the fourth of #LHCRun3.
Find out more about the primordial state of matter studied in heavy-ion collisions at the LHC: www.youtube.com/watch?v=mBfJ...
Last Friday at 3.40 pm, a new #HeavyIon run began at the Large Hadron Collider, the fourth of #LHCRun3.
Find out more about the primordial state of matter studied in heavy-ion collisions at the LHC: www.youtube.com/watch?v=mBfJ...
November 17, 2025 at 4:19 PM
‘Tis the season of heavy ions
Last Friday at 3.40 pm, a new #HeavyIon run began at the Large Hadron Collider, the fourth of #LHCRun3.
Find out more about the primordial state of matter studied in heavy-ion collisions at the LHC: www.youtube.com/watch?v=mBfJ...
Last Friday at 3.40 pm, a new #HeavyIon run began at the Large Hadron Collider, the fourth of #LHCRun3.
Find out more about the primordial state of matter studied in heavy-ion collisions at the LHC: www.youtube.com/watch?v=mBfJ...
#ICYMI
CERN took part in the Fête de la science from 3 to 13 October. During ten days, CERN offered a variety of activities throughout the Pays de Gex as part of a collaborative science trail organised by Addictlab.
CERN took part in the Fête de la science from 3 to 13 October. During ten days, CERN offered a variety of activities throughout the Pays de Gex as part of a collaborative science trail organised by Addictlab.
November 17, 2025 at 2:26 PM
#ICYMI
CERN took part in the Fête de la science from 3 to 13 October. During ten days, CERN offered a variety of activities throughout the Pays de Gex as part of a collaborative science trail organised by Addictlab.
CERN took part in the Fête de la science from 3 to 13 October. During ten days, CERN offered a variety of activities throughout the Pays de Gex as part of a collaborative science trail organised by Addictlab.
Here we see the insertion of a novel beam screen into a magnet for the first time for the High-Luminosity Large Hadron Collider, the successor to CERN's LHC.
With this milestone, one magnet is almost fully ready for the #HiLumiLHC tunnel.
Find out more: hilumilhc.web.cern.ch/article/firs...
With this milestone, one magnet is almost fully ready for the #HiLumiLHC tunnel.
Find out more: hilumilhc.web.cern.ch/article/firs...
November 17, 2025 at 7:47 AM
Here we see the insertion of a novel beam screen into a magnet for the first time for the High-Luminosity Large Hadron Collider, the successor to CERN's LHC.
With this milestone, one magnet is almost fully ready for the #HiLumiLHC tunnel.
Find out more: hilumilhc.web.cern.ch/article/firs...
With this milestone, one magnet is almost fully ready for the #HiLumiLHC tunnel.
Find out more: hilumilhc.web.cern.ch/article/firs...
Reposted by CERN
Issue 75 of Science in School is out! 🎉
It’s packed with classroom activities on radioactivity, chemical clocks, nutritional and environmental science. And offers exciting insights into antimatter, “cannibal” stars, quantum tech, and medical physics.
👉 scienceinschool.org/issue/issue-...
It’s packed with classroom activities on radioactivity, chemical clocks, nutritional and environmental science. And offers exciting insights into antimatter, “cannibal” stars, quantum tech, and medical physics.
👉 scienceinschool.org/issue/issue-...
November 14, 2025 at 11:20 AM
Issue 75 of Science in School is out! 🎉
It’s packed with classroom activities on radioactivity, chemical clocks, nutritional and environmental science. And offers exciting insights into antimatter, “cannibal” stars, quantum tech, and medical physics.
👉 scienceinschool.org/issue/issue-...
It’s packed with classroom activities on radioactivity, chemical clocks, nutritional and environmental science. And offers exciting insights into antimatter, “cannibal” stars, quantum tech, and medical physics.
👉 scienceinschool.org/issue/issue-...
📣 Call for contributions
If you are a project manager, project leader, or part of a project management team at a physics laboratory or #BigScience project, and would like to share your experience and connect with colleagues in the field, the AcceleratePM workshop is looking for contributions. 👇
If you are a project manager, project leader, or part of a project management team at a physics laboratory or #BigScience project, and would like to share your experience and connect with colleagues in the field, the AcceleratePM workshop is looking for contributions. 👇
November 14, 2025 at 12:35 PM
📣 Call for contributions
If you are a project manager, project leader, or part of a project management team at a physics laboratory or #BigScience project, and would like to share your experience and connect with colleagues in the field, the AcceleratePM workshop is looking for contributions. 👇
If you are a project manager, project leader, or part of a project management team at a physics laboratory or #BigScience project, and would like to share your experience and connect with colleagues in the field, the AcceleratePM workshop is looking for contributions. 👇
The heart of operations
Today’s #ThrowbackThursday takes us back to 1976 in the Linac 2 control room.
While CERN's second linear accelerator, Linac 2, was under construction, its control room was already operational.
Today’s #ThrowbackThursday takes us back to 1976 in the Linac 2 control room.
While CERN's second linear accelerator, Linac 2, was under construction, its control room was already operational.
November 13, 2025 at 11:00 AM
The heart of operations
Today’s #ThrowbackThursday takes us back to 1976 in the Linac 2 control room.
While CERN's second linear accelerator, Linac 2, was under construction, its control room was already operational.
Today’s #ThrowbackThursday takes us back to 1976 in the Linac 2 control room.
While CERN's second linear accelerator, Linac 2, was under construction, its control room was already operational.
CERN reaffirms its commitment to environmentally responsible research with the release of its 4th Environment report
Find out more: home.cern/news/news/ce...
Find out more: home.cern/news/news/ce...
November 13, 2025 at 9:09 AM
CERN reaffirms its commitment to environmentally responsible research with the release of its 4th Environment report
Find out more: home.cern/news/news/ce...
Find out more: home.cern/news/news/ce...
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Harald Wenzel during the 2025 CERN Photowalk competition, held earlier this summer. #PhysPics25
Which one is your favourite? Let us know below. 👇
📸 by Harald Wenzel
Which one is your favourite? Let us know below. 👇
📸 by Harald Wenzel
November 12, 2025 at 10:40 AM
Today, CERN’s #PhotoOfTheWeek features a series of images captured by Harald Wenzel during the 2025 CERN Photowalk competition, held earlier this summer. #PhysPics25
Which one is your favourite? Let us know below. 👇
📸 by Harald Wenzel
Which one is your favourite? Let us know below. 👇
📸 by Harald Wenzel
Arts at CERN and the Nobel Prize Museum collaborate on the Collide residency
Find out more: home.cern/news/news/ce...
Find out more: home.cern/news/news/ce...
November 11, 2025 at 1:59 PM
Arts at CERN and the Nobel Prize Museum collaborate on the Collide residency
Find out more: home.cern/news/news/ce...
Find out more: home.cern/news/news/ce...
CERN Council reviews feasibility study for a next-generation collider
At a meeting of the #CERN Council on 6-7 November, delegates from CERN’s Member and Associate Member States reviewed the outcome of the Feasibility Study for the proposed Future Circular Collider.
🔗 home.cern/news/news/ac...
At a meeting of the #CERN Council on 6-7 November, delegates from CERN’s Member and Associate Member States reviewed the outcome of the Feasibility Study for the proposed Future Circular Collider.
🔗 home.cern/news/news/ac...
November 10, 2025 at 5:32 PM
CERN Council reviews feasibility study for a next-generation collider
At a meeting of the #CERN Council on 6-7 November, delegates from CERN’s Member and Associate Member States reviewed the outcome of the Feasibility Study for the proposed Future Circular Collider.
🔗 home.cern/news/news/ac...
At a meeting of the #CERN Council on 6-7 November, delegates from CERN’s Member and Associate Member States reviewed the outcome of the Feasibility Study for the proposed Future Circular Collider.
🔗 home.cern/news/news/ac...
Here we see the Alpha Magnetic Spectrometer (AMS) detector.
Most recently upgraded in 2024, it searches for dark-matter signatures from cosmic rays, #antimatter, and missing matter from its position on the exterior of the International Space Station.
Most recently upgraded in 2024, it searches for dark-matter signatures from cosmic rays, #antimatter, and missing matter from its position on the exterior of the International Space Station.
November 10, 2025 at 8:27 AM
Here we see the Alpha Magnetic Spectrometer (AMS) detector.
Most recently upgraded in 2024, it searches for dark-matter signatures from cosmic rays, #antimatter, and missing matter from its position on the exterior of the International Space Station.
Most recently upgraded in 2024, it searches for dark-matter signatures from cosmic rays, #antimatter, and missing matter from its position on the exterior of the International Space Station.
The Peace Particle 🔵
Join us on 13 November at #CERNScienceGateway for the screening of The Peace Particle, a documentary exploring the history and future of #CERN.
Register here: indico.cern.ch/event/1586858/
Join us on 13 November at #CERNScienceGateway for the screening of The Peace Particle, a documentary exploring the history and future of #CERN.
Register here: indico.cern.ch/event/1586858/
November 8, 2025 at 9:05 AM
The Peace Particle 🔵
Join us on 13 November at #CERNScienceGateway for the screening of The Peace Particle, a documentary exploring the history and future of #CERN.
Register here: indico.cern.ch/event/1586858/
Join us on 13 November at #CERNScienceGateway for the screening of The Peace Particle, a documentary exploring the history and future of #CERN.
Register here: indico.cern.ch/event/1586858/
Could you talk about science for 90 seconds? 🤔
Join our digital science competition for a chance to win exciting prizes from CERN.
Submit your videos by 15 November, explaining any scientific concept. You will be judged on the Content, Clarity and Charisma of your submission.
Join our digital science competition for a chance to win exciting prizes from CERN.
Submit your videos by 15 November, explaining any scientific concept. You will be judged on the Content, Clarity and Charisma of your submission.
🎤 Are you passionate about science? Show us! 😉
To mark the 20th anniversary of FameLab International, CERN is teaming up with FameLab to invite you to share your love for science and win fantastic prizes.
To mark the 20th anniversary of FameLab International, CERN is teaming up with FameLab to invite you to share your love for science and win fantastic prizes.
November 7, 2025 at 10:36 AM
Could you talk about science for 90 seconds? 🤔
Join our digital science competition for a chance to win exciting prizes from CERN.
Submit your videos by 15 November, explaining any scientific concept. You will be judged on the Content, Clarity and Charisma of your submission.
Join our digital science competition for a chance to win exciting prizes from CERN.
Submit your videos by 15 November, explaining any scientific concept. You will be judged on the Content, Clarity and Charisma of your submission.
Proton collisions at the LHC end on a high(-luminosity) note 💫
During this year, an exceptional volume of data was collected at a collision energy of 13.6 teraelectronvolts (TeV).
Watch to find out more about what this means. 👇
During this year, an exceptional volume of data was collected at a collision energy of 13.6 teraelectronvolts (TeV).
Watch to find out more about what this means. 👇
November 6, 2025 at 11:00 AM
Proton collisions at the LHC end on a high(-luminosity) note 💫
During this year, an exceptional volume of data was collected at a collision energy of 13.6 teraelectronvolts (TeV).
Watch to find out more about what this means. 👇
During this year, an exceptional volume of data was collected at a collision energy of 13.6 teraelectronvolts (TeV).
Watch to find out more about what this means. 👇
What if we were made of #DarkMatter?
In today’s #ThrowbackThursday, theoretical physicist Djuna Croon explores the difference between dark matter and ordinary matter, highlighting the role of dark matter in the formation of our existence.
In today’s #ThrowbackThursday, theoretical physicist Djuna Croon explores the difference between dark matter and ordinary matter, highlighting the role of dark matter in the formation of our existence.
November 6, 2025 at 8:18 AM
What if we were made of #DarkMatter?
In today’s #ThrowbackThursday, theoretical physicist Djuna Croon explores the difference between dark matter and ordinary matter, highlighting the role of dark matter in the formation of our existence.
In today’s #ThrowbackThursday, theoretical physicist Djuna Croon explores the difference between dark matter and ordinary matter, highlighting the role of dark matter in the formation of our existence.