The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

In Sci-Fi comic book Resist NOW!, wondrous adventures will illustrate possibilities to combat antimicrobial resistance. But the comic book will only be produced if enough money is raised to make the project into reality.

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

The interdisciplinary, English-taught minor ‘Violence Studies’ looks at violence from very diverse scientific perspectives. What are the benefits from this approach? Students and lecturers evaluate: ‘This minor’s a goldmine’.

Leiden PhD candidate Jo-Anne Verschoor discovered that nearly twenty percent of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. ‘Bacteria are just like people,’ says Verschoor. Her research was published in the journal Communications Biology,…

She walked into the Sylvius building as a wide-eyed twenty-something in 1984, and next year, she’ll be leaving us as a soon-to-be retiree in her sixties. Ine Tijdens (66) reflects on more than four decades at LACDR. ‘One year, I got a little whip for Sinterklaas. That says something about my persona…

On 11 March, pharmaceutical company Janssen received approval to launch its corona vaccine on the European market. This made Janssen the fourth company to be given the green light by the European Medicines Agency. As Lead of the Janssen Campus in the Netherlands, Biology alumnus Bart van Zijll Langhout…

Since 1 January 2020 - with the transition to the Dutch Civil Code - the system of writing off leave has changed. When you take leave, the system automatically writes off the hours that fall due first.

Leiden University, Delft University of Technology and Erasmus University Rotterdam have been collaborating intensively for many years. In 2012 this collaboration was formalised in the Leiden-Delft-Erasmus Universities strategic alliance. This has allowed us to approach important and complex societal…

If you were declared disabled for work on or prior to 1 January 2016, and you are the recipient of a wage-related WGA benefit, you may also be eligible for what is known as a WGA compensation benefit.

Within all bachelor’s and master’s programmes, depending on the type of programme, attention is paid to ensuring that academic research is carried out scrupulously. For each programme, this is done in a way that is appropriate for the discipline in question.

If you are an employee at the university and you are ready for the next step in your career, Leiden University offers a number of internal job openings. To qualify for an internal job opening, you must be an internal candidate.

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.

PhD defence

The University believes it is important that you are happy in your work. This is why we gauge your opinion with the personnel monitor. We use the results to make improvements that enhance job satisfaction.

For inspirational leadership as the basis for a safe and resilient work culture.

For a workplace where social safety is self-evident.

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.

A surprising amount of life grows, crawls and flutters around Leiden University’s buildings. During the Biodiversity Challenge – from 30 April to 2 July – the campus will turn into a research site, and you’ll be the researcher. Grab your phone, take a look around and record what you see.

If your employment ends, you may be eligible for a transition payment. You could use this allowance for education or training, or to make your transition to your next job smoother. Do you qualify for a transition allowance?

The Comenius innovation programme for higher education and universities of applied science gives teachers the resources to implement their vision for education. Every year, the programme creates the conditions for a wide range of teaching innovations to flourish. The government’s aim with this programme…

On this page you will read all about the Kiem funding tool.

If you are unable to come to work due to sickness, find out below how to report sick and how the University guides its employees on sick leave.

Degree programmes must be assessed and accredited once every six years to ensure they provide a high standard of education. You may be asked to speak to the assessment panel.

We provide answers here to some frequently asked questions about collaborations with the fossil fuel industry.

Research, Didactics, Career development

Leiden University is committed to making your work safe, healthy and enjoyable.

Research, Transferable skills

Research, Transferable skills

PhD defence

On 27 May 2025, the Executive Board decided to establish a Committee on Human Rights / Conflict Zones.

ICT

Last weekend, all university buildings were closed and the university systems were unavailable. The reason for this was the major maintenance of the university network. The network’s core needed to be shut down for this, including all supplies and services. A large group of staff from ISSC as well as…

They are big and white, devour energy and could be gathering dust in your department: old, faulty or unused fridges are anything but sustainable. This spring, staff from the Faculty of Humanities swapped 18 of these electricity guzzlers for more energy-efficient models. How did they go about this and…

The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’

Mum works in healthcare, dad in engineering and everyone is straight: many textbooks still show men and women in stereotypical roles, PhD candidate Tessa van de Rozenberg has discovered. She also found that children’s views on these topics often closely resemble those of their parents.

Good teaching is a skill in itself. In order to guarantee the quality of education in the Netherlands, the University Teaching Qualification (Basis Kwalificatie Onderwijs, BKO) is now compulsory for all lecturers, university lecturers (UD), senior university lecturers (UHD) and professors. What does…

Good teaching is a skill in itself. In order to guarantee the quality of education in the Netherlands, the University Teaching Qualification (Basis Kwalificatie Onderwijs, BKO) is now compulsory for all lecturers, university lecturers (UD), senior university lecturers (UHD) and professors. What does…

Fraude en plagiaat

Are you an FSW lecturer with a great idea to innovate your teaching? Put your idea into practice with a Grassroots or Grass Shoots grant!