Thank you to everyone who participated in the Spring Biodiversity Scavenger Hunt!

We hope you enjoyed exploring the site’s biodiversity. Maybe it even inspired you to take your own nature walks on the site, too.

Congratulations to Felix Schlepper (EP-AIP), who answered each question correctly and was selected in the prize draw. The CAGI Choco Pass will allow him and a plus one to spend a day sampling chocolate from shops all over Geneva.

Many thanks to the Site and Civil Engineering department, who developed the biodiversity walk website, and the CAGI Cultural Kiosk at CERN and Geneva Tourism who provided the prize.

You can find the solutions below.

Solutions

1. Eighteen species of which type of plant can be found across the CERN sites?
   A: Orchid. 18 different species were observed during the inventory conducted in the spring of 2022.
2. Which snake can be seen slithering near LHC Point 6? No need to worry, it is harmless and, if threatened, will play dead.
   A: Grass snake. Recognisable by its light collar located on the back of its head, the grass snake is a harmless snake that is often found near bodies of water.
3. Which species has yellow translucent wings and can be found near Crozet? It is not a dragonfly, even if it may look like one.
   A: Sulphur Owlfly. The Sulphur Owlfly is typically found in meadows and grassy areas where it preys on small insects, thus playing a crucial role in controlling arthropod populations.
4. Which bird, found on the Prévessin site, has the impressive multitasking skills of eating, sleeping and even mating in mid-flight?
   A: Common Swift/Black Swift. Observed at the Prévessin site, black swifts are known to spend most of their lives in flight.
5. Which common bird sings alongside a beautiful experiment?
   A: Common nightingale (Luscinia megarhynchos). This bird is often considered a symbol of nature and music, highlighting the serene and beautiful environment surrounding Point 8 of the LHC.

Spring is often an opportunity to enjoy a long weekend. CERN has several official holidays in April and May, during which campus services may adjust their opening hours.

During the Easter weekend, the CERN restaurants and cafeterias will be closed. From 18 to 21 April 2025, only Building 40 will offer a catering service from 08:00 to 21:00.

On 1 May, all catering services will be closed, but the many vending machines will remain available if needed.

During the Ascension holidays, Restaurant 1 (Meyrin) will be open all week, including Thursday 29 and Friday 30 May. Òdélices (Prévessin) will only be closed on Ascension Day (29/05), while all other restaurants and cafeterias will be closed throughout the long weekend.

Please check the Campus App for updated opening times and detailed maps of the catering facilities.

The CERN Relay Race, organised by the Running club and the Staff Association, will be back on Wednesday, 14 May for its 53rd edition.

The main race will start at 12.15 p.m. in front of Building 40, closely followed by the walkers’ race and the children’s race, which is being organised with the support of the Jardin des Particules.

Like last year, the CERN Alumni Network will be taking part in the event thanks to an online relay race challenge: teams composed of CERN alumni from across the globe will be able to run the CERN Relay Race distances in their different locations.

Various CERN clubs will be presenting their activities and there will be a professional DJ to liven up the event. As always, runners are more than welcome to participate in fancy dress and to compete in the costume contest.

Special information: this year, the relay race will be followed by the celebration of the 70th anniversary of the Staff Association. Festivities will continue in front of R1 in the afternoon.

Registration opens on 14  April  on the CERN Running club webpage (you can also scan the QR code on the poster).

Let’s beat last year’s record participation: 156 teams and over 1000 runners and walkers in total!

The electronic document signature for EDH documents will change in May 2025. Members of the personnel will no longer need to remember and type their EDH password. Instead, they will be asked to enter their CERN computer account username to show their intent to sign the document.

If the entered username matches the one that the person used to log in to SSO, then the document will be considered signed by that person.

An information notice will be displayed on the sign screen to remind you of this change.

The change will reduce the number of support requests relating to EDH password resets and simplify the signing process for end users. 

As a precautionary measure, access to Building 133 has been temporarily suspended following diagnostics in preparation for future refurbishment work. This closure involves a temporary reorganisation of the activities normally carried out on site. A move is currently underway, and the new area is expected to be operational during the week of 21 April.

Unfortunately, this new location will not allow the full range of activities to be maintained.

The new area will not be able to accommodate suitable storage or visitors. Only the collection of materials, batteries, lighting, electronics and IT equipment, and the sale to enterprises will be able to continue for the moment.

Storage, internal reuse (including furniture) and sales to individuals have been temporarily suspended. An online solution is being considered for IT equipment.

If you have any questions or specific requests, please use the dedicated contact form.

Thank you for your understanding.

The Storage, Recuperation and Sales service

Wasps are a nuisance that unfortunately come hand in hand with warm spring days. Here are a few tips to help minimise their presence so that we can enjoy the outdoors in peace:

• Clean up your food waste: whether you’re having your lunch outdoors or enjoying a barbecue at one of CERN’s picnic areas, make sure you quickly clean up your food waste, especially sugary or fragrant drinks, which are especially attractive to wasps.
• If you see a wasp nest: call the CERN Fire and Rescue Service (CFRS) on +41 22 76 74848, or submit a ticket on ServiceNow with supporting photos, details of the location and size of the nest and any other useful observations. The CFRS will then remove it with due care. Please do not use insecticides to get rid of wasps. Not only are these harmful chemicals forbidden at CERN, but they also indiscriminately harm bees, insects and the larger animals that feed on them.
• If approached by a wasp: stay calm and stay still! Wasps are easily threatened by fast or erratic movements, and most often sting when agitated.
• If, despite these measures, you get stung: you can call the CFRS on +41 22 76 74444 for assistance and guidance. In addition, you can visit the CERN Medical Service infirmary team on the ground floor of Building 57. They can help manage the pain or remove any embedded stings.

Enjoy the great outdoors, have fun, but don’t get stung!

26 Apr | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Girls in ICT 2025 – Découverte de l’informatique au CERN

6 May 11:00 | Physics | Main Auditorium | EP Seminar | EN
Latest results from the KATRIN experiment

13 May 10:30 | Knowledge Sharing | 40/S2-B01 | KT Seminar | EN
From CERN to Entrepreneur: Navigating the Science Startup Journey

14 May 12:00–16:00 | At CERN | Meyrin site | Running Club & Staff Association | EN & FR
Annual relay race followed by a celebration for the 70th anniversary of the Staff Association / Course relais annuelle suivie d'une célébration des 70 ans de l'Association du personnel

14–18 May | Knowledge Sharing | CERN Science Gateway | CinéGlobe | EN & FR
CinéGlobe Film Festival 2025 – Interwoven / Festival de films CineGlobe 2025 – Entrelacé

17 May | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
La Nuit des musées au CERN

20–23 May | Engineering | CERN | FPGA Developers' Forum | EN
2nd FPGA Developers' Forum (FDF) meeting

21 May 13:30 | Knowledge Sharing | CERN Library | Archives, Library and Open Science events | EN
Meet the authors of "A Modern Take on Physics"

23 May 14:00 | Knowledge Sharing | Online | Micro-Talks | EN
#16 Self-Care: Why should you care?

27 May 20:00 | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Réunion d’information et d’échanges : Publication de l'étude de faisabilité du Futur collisionneur circulaire FCC
Cet événement public est destiné aux résidents des communautés locales (l'inscription est nécessaire, le nombre de places étant limité). Nous invitons la communauté du CERN à suivre l'événement en ligne (sans inscription). A CERN community event is planned for the afternoon, details to come soon.

28 May | Knowledge Sharing | EPFL, Lausanne | Famelab | EN, FR or DE
Famelab Switzerland 2025 local heats, open to 18–35-year-olds

15–27 Jun | Accelerators | Bulgaria | CERN Accelerator School | EN
Pushing the Limits: Intensity Limitations in Hadron Beams

23–27 Jun | Physics | Venice, Italy | Update of the European Strategy for Particle Physics | EN
Open Symposium of the 2026 Update of the European Strategy for Particle Physics

23–28 Jun | Physics | Deadwood, South Dakota, USA | The Institute for Underground Science at SURF | EN
PPC 2025: XVIII International Conference on Interconnections between Particle Physics and Cosmology

15–24 Jul | Physics | CICG, Geneva | ICRC | EN
ICRC 2025: 39th International Cosmic Ray Conference

1–13 Sep | Physics | Pisa, Italy | INFIERI | EN
INFIERI 2025: Intelligent signal processing for frontier research and industry

17–24 Sep | Experiments | CERN | DRD1 | EN
DRD1 Gaseous Detectors School

21 Sep–4 Oct | Accelerators | Spain | CERN Accelerator School | EN
Introduction to Accelerator Physics

20–24 Oct | Physics | CERN | LHC Physics Centre at CERN | EN
SEARCH conference

10–13 Nov | Knowledge Sharing | CERN | History Symposium | EN
4th International Symposium on the History of Particle Physics

This is a curated list of events relevant to the CERN community.
More events are available here: home.cern/events
Indico also shows ALL events happening today, this week and in a calendar view. 

If you would like your event to appear on an upcoming Bulletin events list, please contact bulletin-editors@cern.ch

The popular Bike to Work challenge is back for its 2025 edition. This Switzerland-wide initiative encourages us all to grab our handlebars throughout May and June. So, whether you’re a cycling pro or a beginner, it’s time for pedal power.

How to join:

1. Form a team of four and register on the Bike to Work website. No team? No problem – you can request to join an incomplete one.
2. Flexible rules: No registration fee, no minimum distance, and part of your commute can include public transport. One teammate can even walk, skateboard or use any non-motorised transport.

In this edition, CERN is once again joining forces with the State of Geneva and more than 40 local entities, including Geneva municipalities, public organisations and other international institutions. Together, we’ll make a bold statement promoting active mobility and well-being across Geneva. Winners will be rewarded with special prizes offered by participating organisations.

For more details and tips, check out the Bike to Work FAQ and Bike to CERN web pages. Stay safe by completing the Road Traffic – Bike Riding online course and reviewing CERN’s cycling safety tips.

Let’s hope for sunshine, safe roads and enjoyable cycling!

On the evening of Friday, 11 April, CERN will participate in the fifth edition of “La nuit est belle !” . The aim of this initiative is to make turning off or reducing the intensity of public lighting in the middle of the night commonplace.

The theme of the fifth edition is “The culture… of the night.” The founding and organising partners chose this due to the power of culture to raise awareness and change practices.

CERN will join this initiative by switching off the lights all evening and night, of the Globe, the Science Gateway Portal, Gate E, the roads and car parks on the Meyrin and Prévessin sites, and the SPS and LHC sites, except where lighting is required for safety reasons.

If you are working at CERN, you can contribute by switching off your computers, monitors and lights when you go home. Please remember that switching off computers and lights is good practice in general to save energy and favour biodiversity at night, read more at https://hse.cern/content/energy-management.

During the evening and over the weekend, many activities will be organised in the local area.Visit https://lanuitestbelle.org for more information and to register for activities. You can also follow the event live on social media via the hashtag #lanuitestbelle.

Cyclists and pedestrians – make sure that you can be seen in the dark! Car-drivers – stay alert!

HSE recommends that you wear light-coloured clothing, preferably with reflectors, if you are out when it is dark. 

• People wearing dark clothes will be seen by a car from a distance of about 25 metres
• People wearing light-coloured clothes will be seen from a distance of about 40 metres
• People wearing reflectors will be seen from a distance of about 125 metres

Do you have questions about fire safety, emergency response or first aid?

The CERN Fire and Rescue Service is here to help!

Join us at our pop-up stands for interactive discussions, live demonstrations, hands-on experience with emergency equipment (e.g. fire extinguishers), and expert advice on:

• Fire safety at CERN and at home
• How to react in the event of an emergency
• Basic first-aid techniques
• Prevention

Two or three sessions will be held each month, rotating around CERN’s three restaurants. For the full programme, see: https://hse.cern/BeReadyBeSafe. Pop by, get involved and be prepared!

And, if you haven’t done so yet, why not complete your first-aid knowledge by attending the Life-Saving Actions training course? Find out more about course content and dates on the CERN learning hub.

Spring has arrived and the lure of the great outdoors grows as the days get longer and warmer. This also means the return of ticks: little parasitic mites, whose bites can have severe consequences for our health through the transmission of various infectious agents. The most common infections caused by tick bites are Lyme disease (Lyme Borreliosis), generally treatable with antibiotics, and tick-borne encephalitis (TBE), which is rarer than Lyme disease with 5000 to 13 000 cases reported globally each year. Although there is no vaccine against Lyme disease, one does exist against TBE and it is recommended for anyone, including children residing in or travelling to areas where the disease is prevalent. In Europe, the TBE vaccination is recommended in Switzerland as well as Austria, Czech Republic, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Slovakia, Slovenia, Sweden and Western Russia.

If you are bitten by a tick, you can go to the CERN Medical Service infirmary to have it removed and to get advice and guidance.

Find out more about ticks and tick-borne diseases, vaccination possibilities, how to protect yourself and what to do if you are bitten by a tick on the dedicated Medical Service webpage: https://hse.cern/ticks.

24 Mar 14:00 | Knowledge Sharing | Online | CERN Venture Connect | EN
CVC Deep Tech Talks #1 – Single Frequency Raman Laser with Lisa Glöggler

25 Mar 08:30 | At CERN | Building 29 | HSE | EN & FR
Blood donation at CERN

26 Mar 14:00 | At CERN | 54/R-037 | HSE | EN & FR
Stress Check-up Workshop / Atelier "Stress Check-up" – part of CERN’s new stress check-up programme

26 Mar 16:00 | Knowledge Sharing | 40/S2-C01 - Salle Curie | Early career community | EN
LHC Soft Skills Workshop: Presenting Science – How to prepare a scientific presentation with impact!

27 Mar 12:00 | Knowledge Sharing | IdeaSquare | IdeaSquare | EN
Prototyping at CERN

27 Mar 16:30 | Knowledge Sharing | Main Auditorium | CERN Colloquium | EN
Physics in the abyss with KM3NeT: from cosmic rays to neutrino oscillations

27 Mar 18:00 | Knowledge Sharing | Cinélux | CERN Public events partnership | FR
Première du documentaire Segnali di vita de Leandro Picarella en présence du protagoniste du film – l’astrophysicien Paolo Calcidese – et du physicien Michael Doser, CERN

1 Apr 12:30 | At CERN | Council Chamber & online | Association du personnel/Staff Association | FR & EN
La protection sociale au CERN / Social protection at CERN

2 Apr 11:00 | Knowledge Sharing | Main Auditorium | Academic Training Lectures | EN
Fresh results (and surprises) from the James Webb Space Telescope (1/2)

3 Apr 11:00 | Knowledge Sharing | Main Auditorium | Academic Training Lectures | EN
The other side of cosmology: what we learn from first galaxies and black holes (2/2)

3 Apr 16:30 | Knowledge Sharing | Main Auditorium & online | CERN Colloquium | EN
Superintelligent Agents Pose Catastrophic Risks: Can Scientist AI Offer a Safer Path?

4 Apr 10:30 | At CERN | Council Chamber & online | Association du personnel/Staff Association | FR & EN
Réunion publique Association du personnel / Public meeting Staff Association

4 Apr 14:00 | Knowledge Sharing | Council Chamber | KT Seminars | EN
Symposium to celebrate Ugo Amaldi’s 90th birthday

8–11 Apr | Accelerators | Globe of Science and Innovation | ICFA | EN
5th ICFA Beam Dynamics Mini-Workshop on Machine Learning for Particle Accelerators

9 Apr 11:00 | Knowledge Sharing | CERN Library | Archives, Library and Open Science events | FR
Meet the author of "Quantix", "Infinix" and "Cosmix"

9 Apr 13:30 et 15:30 | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Les super-pouvoirs de l’Univers - Ateliers BD et sciences au CERN – part of CERN's Quantum! season

9 Apr 20:00 | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Super Quantum! – part of CERN's Quantum! season

9–13 Apr | Knowledge Sharing | Palexpo | CERN Local engagement | FR
CERN Workshops (Wed, Sat & Sun) at the Salon of Inventions

10 Apr 18:00 | Knowledge Sharing | Online | CERN Alumni | EN
News from the Lab | Introduction and Status Report on the HL-LHC Project

14 Apr 11:00 | Knowledge Sharing | CERN Library | Archives, Library and Open Science events | FR
Meet the authors of "New Frontiers in Science in the Era of AI"

26 Apr | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Girls in ICT 2025 – Découverte de l’informatique au CERN

6 May 11:00 | Physics | Main Auditorium | EP Seminar | EN
Latest results from the KATRIN experiment

14 May 12:00–16:00 | At CERN | Meyrin site | Running Club & Staff Association | EN & FR
Annual relay race followed by a celebration for the 70th anniversary of the Staff Association / Course relais annuelle suivie d'une célébration des 70 ans de l'Association du personnel

14–18 May | Knowledge Sharing | CERN Science Gateway | CinéGlobe | EN & FR
CinéGlobe Film Festival 2025 – Interwoven / Festival de films CineGlobe 2025 – Entrelacé

20–23 May | Engineering | CERN | FPGA Developers' Forum | EN
2nd FPGA Developers' Forum (FDF) meeting

23 May 14:00 | Knowledge Sharing | Online | Micro-Talks | EN
#16 Self-Care: Why should you care?

28 May | Knowledge Sharing | EPFL, Lausanne | Famelab | EN, FR or DE
Famelab Switzerland 2025 local heats, open to 18–35-year-olds

15–27 Jun | Accelerators | Bulgaria | CERN Accelerator School | EN
Pushing the Limits: Intensity Limitations in Hadron Beams

23–27 Jun | Physics | Venice, Italy | Update of the European Strategy for Particle Physics | EN
Open Symposium of the 2026 Update of the European Strategy for Particle Physics

23–28 Jun | Physics | Deadwood, South Dakota, USA | The Institute for Underground Science at SURF | EN
PPC 2025: XVIII International Conference on Interconnections between Particle Physics and Cosmology

6–19 Jul | Computing | Lund, Sweden | CERN School of Computing | EN
46th CERN School of Computing (CSC 2025)

15–24 Jul | Physics | CICG, Geneva | ICRC | EN
ICRC 2025: 39th International Cosmic Ray Conference

1–13 Sep | Physics | Pisa, Italy | INFIERI | EN
INFIERI 2025: Intelligent signal processing for frontier research and industry

21 Sep–4 Oct | Accelerators | Spain | CERN Accelerator School | EN
Introduction to Accelerator Physics

This is a curated list of events relevant to the CERN community.
More events are available here: home.cern/events
Indico also shows ALL events happening today, this week and in a calendar view. 

If you would like your event to appear on an upcoming Bulletin events list, please contact bulletin-editors@cern.ch

Stress is a natural part of life, but when it starts affecting your sleep, concentration or energy levels, it’s time to take action. Whether you’re facing a fast-paced work environment, growing responsibilities or personal challenges, managing stress effectively is key to maintaining well-being and performance.

To help you to better understand and manage stress, CERN’s Medical Service is launching a Stress Check-up programme with three practical components:

1. Group Stress Check-up workshops – A 1.5-hour interactive session combining awareness and practical tools to help you to identify stress triggers, understand their impact and discover a simple and effective strategy to manage stress.
   Sign up now (max. 12 participants):
   • Wednesday, 26 March, 2.00 p.m. to 3.30 p.m.
   • Tuesday, 13 May, 10.30 a.m. to 12.00 p.m.
   • Tuesday, 24 June, 10.00 a.m. to 11.30 a.m.
      
2. Individual Stress Check-up assessments – An individual, personalised assessment, in complete confidentiality, designed to measure your stress and energy levels on a physiological level and provide tailored recommendations for better stress management.
    
3. For supervisors: on-site prevention actions – Every team is unique: we can provide tailored sessions designed to help each team member to acquire the concrete tools they need to identify, understand and reduce stress and conserve their energy.

Take action for your well-being! Equip yourself with effective strategies to reduce stress and improve resilience: join us for a group workshop or contact us at infirmary-service@cern.ch to arrange an individual check-up or a team session.

For more information and resources, see https://hse.cern/mentalhealth.

Long Shutdown 3 (LS3) is approaching. During long shutdowns, the number of people doing classroom safety courses goes up by as much as 40%.

To make sure that you can access the installations when the time comes and are fully prepared from the safety point of view, you should start to think about your training needs right now.

LS3 is also a strategic time to boost your skills and acquire new knowledge.

Don’t delay!

• Talk to your supervisor to determine which safety training courses will be required for your tasks during LS3.
• Take a look at the training catalogue and check that your previous safety training is still valid on the CERN Learning Hub.

• Enrol now for the relevant classroom courses!

Planning your safety training needs in advance will help you avoid long waiting lists for safety courses and guarantee you a place on the right course before you need to request access to a specific installation.

If no session is scheduled or the available dates are inconvenient, put your name on the waiting list. This will also help us to establish the demand and organise new sessions accordingly.

Please feel free to contact us if you have any questions.

Thank you for planning ahead.

The Safety Training service
(safety.training@cern.ch)

At the last blood donation campaign on 26 November 2024, 108 donors came along to give blood, of which 34 were first-timers. 88 donations were collected. Thank you to all donors!

The Geneva blood barometer, which is regularly updated, shows that blood stocks continue to run extremely low. CERN is a key contributor to blood stocks in the region and ranks 2nd as the region’s biggest blood donor after the Hôpitaux universitaires de Genève (HUG).

To maintain this momentum, CERN will hold its first blood donation session of 2025 on Tuesday 25 March, from 8.30 a.m. to 4.30 p.m. in collaboration with the HUG in Building 29.

Two further blood donation campaigns will be organised this year, on 22 and 23 July and 18 November.

Before coming to the Building 29 donation point, please make sure that:

• you are in good health and have no symptoms such as fever, cough, a cold or breathing difficulties;
• You are eligible to give blood:
  • Complete the brief online pre-donation questionnaire (in French)
  • Please consult this information sheet and this questionnaire issued by the HUG.
  • Note that only the pre-donation conversation with the nurse or doctor on the day can confirm your eligibility).
  • If returning from travel abroad or arriving from another country, perform the travelcheck on the HUG website (in French)
  • If you have recently been vaccinated against the flu or COVID, ensure 48 hours have passed since receiving the vaccination.
  • Please bring proof of ID with you on the day of the donation.

Save yourself time: pre-book your appointment with OneDoc:

The possibility of pre-booking your appointment via the OneDoc platform is made available on this link. Spontaneous donors will be able to come at their convenience without an appointment, mindful that there may be some waiting time on the day.

As a thank you, the HUG will be giving each donor a 10 CHF voucher, to be used in Novae’s Restaurants 1 and 2 at CERN.

We hope to see many of you at the donation point!

Give blood, save lives.

Electronic Travel Authorisations (ETAs) – a digital permission to visit or transit through the UK – are being introduced for visitors to the UK who do not have a British or Irish passport. An ETA is now required for many nationalities that did not previously require a visa or other pre-approval for travel to the UK.

Starting 2 April 2025, travellers who travel visa-free will require an ETA to enter or transit/layover through the UK. It will be linked to passports electronically and permits travel to the UK but does not promise entry. The ETA is part of the UK government’s plans to strengthen the UK border through pre-approval and digitalisation.

Applying for an ETA is quick and simple. Visitors should apply in advance and find out when to do so on GOV.UK. An ETA costs £10 and permits multiple journeys to the UK for stays of up to six months at a time over two years or until the holder’s passport expires – whichever is sooner.

The ETA can be obtained directly by travellers on GOV.UK. Check if you need a UK visa here.

10 Mar 16:00 | Knowledge Sharing | 160/1-009 & online | Diversity & Inclusion Programme | EN
Inclusion & Awareness Forum 01

11 Mar 09:00 | At CERN | Online | HR | EN
HR webinar – Internal Mobility

11 Mar 11:00 | Physics | 222/R-001 | LHC Seminar | EN
First observation of strange baryon enhancement with effective energy in pp collisions at the LHC with ALICE

11 Mar 16:00 | Physics | 508/1-001 | ISOLDE Seminar | EN
High-resolution laser spectroscopy of light-gold isotopes

11 Mar 17:30 | Knowledge Sharing | Main Auditorium | Staff Association | FR
L'excellence au travail, vu par les neurosciences

12 Mar 14:00 | Physics | 4/3-006 | Theory Colloquia | EN
An Introduction to Topological Quantum Computation

13 Mar 10:00 | Physics | 40/S2-C01 | QTI Seminars | EN
Parameter estimation of gravitational waves with a quantum metropolis algorithm

14 Mar 14:30 | Knowledge Sharing | Online | CERN Alumni | EN
Moving Out of Academia to Data Science & Analytics (2nd edition)

14 Mar 16:00 | Accelerators | 6/2-024 | BE Seminars | EN
Challenges from collective effects in the design and modelling of Muon Colliders

20 Mar 20:00 | Knowledge Sharing | CERN Science Gateway | Public Events | FR
Les Dieux et le Père Noël : vers une solution quantique – part of CERN's Quantum! season

21 Mar 14:00 | Knowledge Sharing | Online | Micro-Talks | EN
#15 Critical Thinking: Challenge Assumptions, Reframe Issues

25 Mar 08:30 | At CERN | Building 29 | HSE | EN & FR
Blood donation at CERN

26 Mar 16:00 | Knowledge Sharing | 40/S2-C01 - Salle Curie | Early career community | EN
LHC Soft Skills Workshop: Presenting Science – How to prepare a scientific presentation with impact!

2 Apr 11:00 | Knowledge Sharing | Main Auditorium | Academic Training Lectures | EN
Fresh results (and surprises) from the James Webb Space Telescope (1/2)

3 Apr 11:00 | Knowledge Sharing | Main Auditorium | Academic Training Lectures | EN
Fresh results (and surprises) from the James Webb Space Telescope (2/2)

3 Apr 16:30 | Knowledge Sharing | Main Auditorium & online | CERN Colloquium | EN
Superintelligent Agents Pose Catastrophic Risks: Can Scientist AI Offer a Safer Path?

4 Apr 14:00 | Knowledge Sharing | Council Chamber | KT Seminars | EN
Symposium to celebrate Ugo Amaldi’s 90th birthday

8–11 Apr | Accelerators | Globe of Science and Innovation | ICFA | EN
5th ICFA Beam Dynamics Mini-Workshop on Machine Learning for Particle Accelerators

9 Apr 11:00 | Knowledge Sharing | CERN Library | Archives, Library and Open Science events | FR
Meet the author of "Quantix", "Infinix" and "Cosmix"

9 Apr 13:30 et 15:30 | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Les super-pouvoirs de l’Univers - Ateliers BD et sciences au CERN – part of CERN's Quantum! season

9 Apr 20:00 | Knowledge Sharing | CERN Science Gateway | CERN Public events | FR
Super Quantum! – part of CERN's Quantum! season

9–13 Apr | Knowledge Sharing | Palexpo | CERN Local engagement | FR
CERN Workshops (Wed, Sat & Sun) at the Salon of Inventions

14 Apr 11:00 | Knowledge Sharing | CERN Library | Archives, Library and Open Science events | FR
Meet the authors of "New Frontiers in Science in the Era of AI"

20–23 May | Engineering | CERN | FPGA Developers' Forum | EN
2nd FPGA Developers' Forum (FDF) meeting

28 May | Knowledge Sharing | EPFL, Lausanne | Famelab | EN, FR or DE
Famelab Switzerland 2025 local heats, open to 18–35-year-olds

15–27 Jun | Accelerators | Bulgaria | CERN Accelerator School | EN
Pushing the Limits: Intensity Limitations in Hadron Beams

23–27 Jun | Physics | Venice, Italy | Update of the European Strategy for Particle Physics | EN
Open Symposium of the 2026 Update of the European Strategy for Particle Physics

23–28 Jun | Physics | Deadwood, South Dakota, USA | The Institute for Underground Science at SURF | EN
PPC 2025: XVIII International Conference on Interconnections between Particle Physics and Cosmology

6–19 Jul | Computing | Lund, Sweden | CERN School of Computing | EN
46th CERN School of Computing (CSC 2025)

15–24 Jul | Physics | CICG, Geneva | ICRC | EN
ICRC 2025: 39th International Cosmic Ray Conference

1–13 Sep | Physics | Pisa, Italy | INFIERI | EN
INFIERI 2025: Intelligent signal processing for frontier research and industry

21 Sep–4 Oct | Accelerators | Spain | CERN Accelerator School | EN
Introduction to Accelerator Physics

This is a curated list of events relevant to the CERN community.
More events are available here: home.cern/events
Indico also shows ALL events happening today, this week and in a calendar view. 

If you would like your event to appear on an upcoming Bulletin events list, please contact bulletin-editors@cern.ch

Vaccination remains one of the most effective tools in public health. According to the World Health Organization (WHO), every year vaccination helps prevent between 3.5 and 5 million deaths from avoidable diseases including measles, pneumonia and rotavirus-induced diarrhoea. It has eradicated smallpox, drastically reduced polio cases and helps protect vulnerable populations by maintaining high levels of vaccination coverage. However, declining vaccination rates have led to the resurgence of diseases such as whooping cough and influenza, underscoring the importance of mass immunisation efforts.

In professional settings, vaccination serves a dual purpose: protecting employees from work-related risks and preventing disease spread within organisations. This contributes to collective immunity, safeguarding the entire workforce.

Duty travel and vaccination
If you are travelling for work, it is important to be aware of the specific health risks linked to your destination. If you are an employed (MPE) or associated (MPA) member of the personnel, we highly recommend you make an appointment well in advance – ideally six weeks before your departure – with CERN’s occupational health doctor for a duty travel consultation. This will provide you with an opportunity for a general health check and to get vaccination recommendations tailored to your destination.

Note that some specific vaccinations, like for yellow fever, have to be administered in registered centres, such as the Tropical and Humanitarian Medicine Division at the Hôpitaux Universitaires de Genève (HUG). You should also consult such a centre if you have a particular vaccination status or needs.

You can contact the CERN Medical Service to book an appointment for work-related travel vaccinations by phone: +41 22 76 73186 or email: medical.service@cern.ch.

For more information, please refer to the following webpages:

• Vaccine Scheduler | ECDC
• https://www.unicef.org/immunization
• Vaccinations en santé au travail – Article de revue – INRS (in French)
• EpiScope – janvier 2025 – Nouveautés 2025 des déclarations de maladies transmissibles | ge.ch (in French)

Note that only authorised private parties can take place in Restaurant no.1. The authorisation has to be sought, at least 48 hours in advance, through CERN Service Portal: Authorisation request to organise a drink in the Restaurant 1 extension.

The terms and conditions are the following:

• Operational Circular No.08 Dealing with alcohol-related problems shall be observed.
• Private events shall not disturb activities of the Organization in any respect. Any noisy disturbance has to be avoided after 22:00.
• The party organiser bears the responsibility for the event and for security reasons, shall be on site for the duration of the event.
• All participants have to observe CERN Code of Conduct in every respect.
• The party shall be stopped at the latest at 23:30 (except for Saturdays and Sundays 21:30)
• The furniture (tables, chairs, etc.) shall not be moved; any damages shall be borne by the organiser
• Immediately after the event, the cutlery, plates and glasses shall be cleared and put back at the right place. The tables and the place in general shall be cleaned properly. The waste shall be put in the appropriate bins. Glass bottles shall be removed, no glass recycling being available at the restaurants. Any additional cleaning to be provided by the restaurant staff will be charged to the organiser.

26 Feb 11:00 | Knowledge Sharing | 874/1-011 | Knowledge Transfer | EN
KT fund and MA budget information session

27 Feb 16:30 | Knowledge Sharing | Main Auditorium | CERN Colloquium | EN
A Quantum Leap in Quantum Information: Quantum computing, simulation, communication and metrology with quantum optical platforms

3 Mar 15:00 | Experiments | Main Auditorium and online | LHC Experiment Committee (LHCC) | EN
161st LHC Experiment Committee (LHCC) meeting - open session

4–6 Mar | Computing | Council Chamber | CERN openlab | EN
2025 CERN openlab Technical Workshop

7 Mar 09:30 | Knowledge Sharing | 30/7-018 - Kjell Johnsen Auditorium | KT Seminars | EN
A Brief History of Time: From High-Energy Physics to AI-Driven Cancer Care

7 Mar 11:00 | Knowledge Sharing | Online and Salle Bohr (40/S2-B01) | CERN Alumni | EN
CERN Alumni Virtual Company Showroom with Transmutex

14 Mar 14:30 | Knowledge Sharing | Online | CERN Alumni | EN
Moving Out of Academia to Data Science & Analytics (2nd edition)

20 Mar 20:00 | Knowledge Sharing | CERN Science Gateway | Public Events | FR
Les Dieux et le Père Noël : vers une solution quantique – part of CERN's Quantum! season

21 Mar 14:00 | Knowledge Sharing | Online | Micro-Talks | EN
#15 Critical Thinking: Challenge Assumptions, Reframe Issues

26 Mar 16:00 | Knowledge Sharing | 40/S2-C01 - Salle Curie | Early career community | EN
LHC Soft Skills Workshop: Presenting Science -- How to prepare a scientific presentation with impact!

20–23 May | Engineering | CERN | FPGA Developers' Forum | EN
2nd FPGA Developers' Forum (FDF) meeting

15–27 Jun | Accelerators | Bulgaria | CERN Accelerator School | EN
Pushing the Limits: Intensity Limitations in Hadron Beams

23–27 Jun | Physics | Venice, Italy | Update of the European Strategy for Particle Physics | EN
Open Symposium of the 2026 Update of the European Strategy for Particle Physics

6–19 Jul | Computing | Lund, Sweden | CERN School of Computing | EN
46th CERN School of Computing (CSC 2025)

21 Sep–4 Oct | Accelerators | Spain | CERN Accelerator School | EN
Introduction to Accelerator Physics

This is a curated list of events relevant to the CERN community.
More events are available here: home.cern/events
Indico also shows ALL events happening today, this week and in a calendar view. 

If you would like your event to appear on an upcoming Bulletin events list, please contact bulletin-editors@cern.ch