Maileon statistics give you insight into the success of your email campaigns. How often was an email opened, which links did recipients click on and how many unsubscribes were there? With that data, you can optimise your campaigns.

What do you need to record a knowledge clip in the studio? You can find below a checklist of the materials you need to bring to a studio recording. Keep in mind that this checklist depends on the kind of video you want to record. Always discuss the specifics for producing such a video with your video…

If you wish to come to the Netherlands there are certain immigration procedures you need to follow. The Service Centre International Staff will help you with all of these. We will provide you with checklists, an immigration wizard and an overview of all immigration formalities. This way you will be…

Leiden University wants to attract the best academics. What requirements does it set for new academic staff members? What requirements must you meet for a career in academia? Read more about our career policy for academic staff.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within and outside the University, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner.

Many national and international research funders can provide financing for your research project.

Active learning is one of the ambitions mentioned in the University’s educational vision (Learning@LeidenUniversity).

When moving to the Netherlands, it is important to know whether you are considered resident tax payer or non-resident. Both residents and non-residents are taxed on their taxable income. A number of criteria help determine your status as resident or non-resident.

The University does its best to create a pleasant work environment. It may nevertheless happen that you are unable to work due to a short-term or long-term illness or disability. The occupational health physicians will help you reduce health risks and advise you through your recovery and return to w…

Communication, Personal development, Leadership

Leiden University is committed to creating a pleasant working environment for its staff. It may nevertheless happen that you find yourself unable to work due to a temporary or long-term illness or disability. The university occupational health physicians can help you reduce health risks and give you…

Leadership, Personal development, Management

Leiden University is committed to creating a pleasant working environment for its staff. It may nevertheless happen that you find yourself unable to work due to a temporary or long-term illness or disability. The university occupational health physician can help you reduce health risks and give you…

What do bats do at night when they’re not hunting? Using tiny GPS trackers, Leiden researchers discovered that pond bats spend a substantial portion of the night resting – often outdoors. This surprising insight could change the way we protect them.

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

The Executive Board of Leiden University has appointed Jan Kolen as the University’s Artificial Intelligence (AI) Coordinator as of 1 February 2022. In this role Kolen will take the lead in regional and national cooperation relating to the topic of AI, data and digitalisation.

As of 1 September, Jeroen van Zon started as professor by special appointment in Quantitative Developmental Biology at the Institute of Biology Leiden (IBL). Van Zon is also group leader of Quantitative Developmental Biology at the physics research institute AMOLF. Three questions about his new role…

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

On Friday 29 November, Leiden University transferred leasehold land to pharmaceutical company Janssen Biologics B.V., a subsidiary of Johnson & Johnson, in preparation for a new building on the Leiden Bio Science Park (LBSP). The healthcare company is expanding further on the park with extra laboratories…

The Council of Ministers has appointed Jan Willem Erisman, Professor of Environment and Sustainability at Leiden University, as chair of the new Scientific Climate Council (WKR) from 1 March. This council will advise the government on climate policy.

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

On 14 April, the National Growth Fund awarded million euros in grants to two consortia in which Leiden's science faculty is involved. Pharma-NL will receive 80 million euros and Oncode-PACT 325 million euros. Pharma-NL wants to make medicines available to the patient faster and more sustainably. Oncode-PACT…

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

On April 1, Marco Spruit, Professor of Advanced Data Science in Population Health at the Leiden University Medical Center (LUMC) and the Leiden Institute of Advanced Computer Science (LIACS), will deliver his inaugural lecture ‘Translational Data Science in Population Health’. Spruit will use the opportunity…

Proving a quantum computer to be quicker than a normal one is one step closer. After a breakthrough in speeding up classical algorithms, researchers Vedran Dunjko and Casper Gyurik showed that only one quantum algorithm could beat its classical counterpart. They discuss their discovery in Quanta Mag…

ASTRON en de Universiteit Leiden beginnen samen een nieuwe leerstoel over sterrenkunde en AI. Bijzonder hoogleraar Joeri van Leeuwen gaat deze positie vullen.

The Institute of Biology Leiden (IBL) has a new professor: as of 1 March, Frederic Lens has been appointed Professor of Biodiversity and Anatomy of Plants. For Lens, the appointment feels like a wonderful recognition. ‘I am pleased with Leiden University’s appreciation of my contributions to research…

Organisation

Michiel Hogerheijde has been appointed temporary programme director of the Astronomy master's programme from 1 January to 1 September 2024. He takes over the duties of Harold Linnartz, who unexpectedly passed away at the end of December. Hogerheijde combines the position with his duties as programme…

On March 24, 2025, World TB Day, we (Annemarie Meijer (IBL), Matthias Barz (LACDR), and Simone Joosten (LUMC) hosted the symposium „A Dutch Perspective on Mycobacterial Infections“, which brought together the Dutch scientific community working on mycobacterial infections.

Gilles van Wezel has been reappointed as Scientific Director at the Leiden Institute of Biology (IBL). Van Wezel has been director of this institute since September 2018 and will remain so until 1 September 2026.

Holocaust scholars Barbara Engelking and Jan Grabowski will jointly hold the Cleveringa lecture on November 26. They were accused of defamation in Poland for a book they co-edited. How has this affected them? ‘This is an attempt to wear us down.’

Can humans perceive single photons? What is our place in the universe? How can we make quantum computers more stable? Five researchers from the Faculty of Science have received funding for their research projects within the Dutch Research Agenda (NWA).

'Education has always been something I am very interested in,' says the passionate Michiel Hogerheijde. He was already chairman of the astronomy programme committee and has been teaching for many years. Since 1 October, he is also the new Programme Director of the astronomy bachelor. 'I really enjoy…

From once controversial scientific works and historical bibles, to personal shopping lists and clothing bills. The 17th-century Bibliotheca Thysiana and the archive of the collector Johannes Thysius exhibit both the intellectual and everyday life as it was three hundred years ago. Now a brand-new digital…

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…

Chinese Studies, History or Urban Studies? How do you choose the right degree programme for you? Hundreds of prospective students tried to find out at the Bachelor’s Open Day in Leiden and The Hague. A new formula helped them on their way.

Are we on the right track towards a circular economy in 2050, with fully renewable energy technology and circular construction? The CML of Leiden University, together with the Netherlands Environmental Assessment Agency (PBL), TNO, Utrecht University and RIVM, is investigating what is needed to achieve…

A standing ovation. A wave and a smile from the president. A final selfie. Ukrainian President Volodymyr Zelensky addressed students in the Netherlands for the first time on Tuesday morning via a livestream in The Hague. He did so in front of two packed lecture halls at both Leiden University and The…

From memorials to the armed forces to memory stones for individual victims. It was only later that the Holocaust took a central role in Western remembrance culture, Cleveringa Professor Frank van Vree notes. ‘Nationalists and human rights activists both invoke the experience of the Holocaust.’

Leiden Observatory has achieved a rare feat: two of its research teams have been awarded prestigious ALMA Large Programmes, allowing them to study how galaxies formed and evolved in the early Universe using cutting-edge telescope observations.

Tuberculosis stands as one of the most lethal infectious diseases worldwide. A significant challenge in combatting tuberculosis lies in the emergence of antibiotic resistance triggered by genetic alterations, commonly known as mutations. These mutations can diminish the responsiveness to antibiotics,…

Three Dutch-Belgian telescopes have started operating at the ESO La Silla Observatory in Chile. This so-called BlackGEM array will scan the southern sky to hunt for cosmic events that produce gravitational waves, such as mergers of neutron stars and black holes. Leiden astronomer Rudolf le Poole is…

For the fifth year in succession, on the foundation day of the university, Leiden professors taught a lesson at primary schools as part of the ‘Meet the Professor’ programme.

Human resources