Smiling faces, sweltering heat and a record-breaking donation – that was the Leiden Science Run 2025. On Saturday 21 June, the Leiden Bio Science Park turned bright orange as enthusiastic runners completed 4.5 kilometres to support research for vulnerable children.

On March 13, Dr. Erik Deul passed away at the age of 67. He leaves behind his wife Wilma, children Caroline and Wouter, and grandchildren Joris, Stach, Viggo, Archie and and a granddaughter expected later this year. Erik served as head of ICT at Leiden Observatory for 35 years, and later also at the…

It’s vital that universities are able to recognise the signs of alcohol and drug misuse in students. Staff also have an important role to play in talking about substance use. ‘That one conversation can make a difference’, says Jitske Hoogervorst, an adviser at Brijder addiction treatment services.

Maryam Alqassab, an assistant professor at ICLON (Leiden University Graduate School of Teaching), helps train new PhD supervisors and knows how demanding the role can be. When asked to contribute to an online handbook for PhD supervisors, she didn’t hesitate: ‘Everything supervisors do or are involved…

An independent review committee has unanimously selected three projects to receive a grant from the Prof. Andrea Evers Fund for Health, Behaviour and Society. The fund, which was launched earlier this year, supports innovative inter- and transdisciplinary research in health and well-being.

The JUL board 2025/2026 consists of five colleagues:

Master

To help you make the impact or valorisation of your scientific research more clearly apparent, we have created a Leiden Impact Matrix.

In this section you will find a listing of national teaching awards, fellowships and grants.

Strong leadership is essential for building an open and learning organisation.

Regardless of whether you work at a desk or in a lab, all workplaces have their risks. As your employer, the University aims to create a healthy workplace and to limit possible health risks. Here you will find the main risks and measures that we take to reduce them.

Each programme has a Board of Examiners. This is a legal requirement. The board determines whether students meets the conditions of the Course and Examination Regulations (OER) and whether they possess the knowledge, understanding and skills required to pass the final examination for that programme.

The Netherlands have an excellent public transport system. You can get almost everywhere by train, bus or tram. All you need is an OV-chipkaart. When it comes to getting around in Leiden it might be worth to consider buying a (secondhand) bike. Do you prefer travelling by car? You will find more on…

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.

Are you a senior lecturer and do you play an active role in the university’s educational development and innovation? If so, you are eligible for the Senior Teaching Qualification (SKO). This qualification shows that you possess strong didactic and educational skills and that you contribute to the development…

PhD

Are you a PhD candidate, and is there something you’d prefer to discuss with someone other than your thesis director or supervisor? The confidential counsellor for PhD candidates is here to help. You can speak to him/her in confidence and receive advice. If you experience symptoms of physical or mental…

Management, Research, Working effectively, Transferable skills

If you have a guest or visitor who needs access to the network drives or a ULCN account, you can have him or her registered in the guest management system (GMS) via your GMS contact person.

GROW: Conversations on Performance, Development and Well-being (Gesprekken over Resultaat, Ontwikkeling en Welzijn). The new GROW interviews offer an opportunity to speak openly with each other about your work, development and well-being.

The European Space Agency (ESA) has officially adopted ARRAKIHS as a scientific mission, confirming the target launch date of 2030. Matthieu Schaller is part of the Science Team: ‘I look forward to learning more about the dark part of our cosmos.’

What if we let students assess themselves, or awarded fewer grades? What if we held challenging discussions in public rather than in the classroom, or embraced AI? With ‘Free your mind’ as its theme, no idea was too outlandish at the Leiden Teachers’ Academy Education Conference.

Theo van den Doel received his PhD in January for his research on veteran support. This showed that for long the government learned little from past missions. He has since presented his dissertation to the Lower House of Representatives, and the Minister for Defence, Kajsa Ollongren, has responded to…

Students of the Biology minor course Molecular Design have successfully boosted their skills in collaboration, research and writing with the recently developed E-learning Skills Platform. The biology students and their teachers greatly value the initiative. ‘Sometimes I couldn’t believe what progress…

Assistant Professor Vedran Dunjko and his team receive a €100,000 gift from Google to support them in their quantum research. The research focuses on whether quantum computers can provide new ways of understanding the mysteries of high-energy physics. Google is committed to supporting ambitious research…

Prof. Dr. Jasper Knoester has been reappointed by the Executive Board of Leiden University as Dean of the Faculty of Science. His second term will run until 1 January 2030. Knoester’s reappointment has broad support within the faculty. His approachable leadership style and people-focused approach have…

Cyber-attacks, privacy-related problems or failures in functioning: many technologies that are used every day have security issues that are solved when the software is already in use. A new interdisciplinary project, in which Olga Gadyatskaya, Harry Wijshoff, Alex Uta and Kristian Rietveld from the…

Developing a better treatment for patients with head and neck cancer, that is what Binanox, The 2022 iGEM Leiden team, want to achieve. They hope to raise at least 10,000 euros for this cause. Support their crowdfunding campaign today.

Research

Bram Slütter

Eight early-career researchers from around the world have been awarded a 51 Pegasi b Fellowship – a prestigious opportunity for astronomers. Julia Santos, a PhD candidate at Leiden Observatory, is one of them. We asked her four questions about this remarkable fellowship.

Organisation

Arnold Tukker has been appointed as distinguished visiting professor at Nanjing University in the field of industrial ecology.

Leiden University is going to partner with the Asian Development Bank, a bank committed to regional development. President of the Executive Board Annetje Ottow signed a memorandum of understanding on this unique partnership in Manila on 27 April.

Leiden University’s Board of Governors is pleased to announce the appointment of Tjerk Kroes to the Board of Governors by the outgoing Minister of Education, Culture and Science, Gouke Moes.

How do you combine the growth of wind energy with the protection of vulnerable seabirds? With her master’s thesis on this delicate balance, Sofie Hajer won the 2025 Unilever Research Prize. Her work provides new insights into how ecology and policy can strengthen each other.

Two Leiden projects have been awarded Open Science NL funding to make science more accessible to academia and the world outside. The projects will strengthen the open science infrastructure.

A leaving do, birthday or other celebration? Many people like to ask for a donation to a good cause for their birthday or anniversary present. Leiden research can be one such cause.

Professor Sarah de Rijcke became the new Rector Magnificus of Leiden University on 15 January 2026. She introduces herself and shares what motivates her to take on this role.

How can humans and computers learn from data? To research this, scientists often use so-called Bayesian methods. Although these methods are widely used, they also have limitations and are not always easy to interpret. In her dissertation Rianne de Heide describes some of these problems and introduces…

Bachelor student Douwe Remmelts passed away on April 30.

Luris supports and advises researchers and societal partners on knowledge transfer, research impact and public-private partnerships between researchers and society. The organisational structure of Luris is changing to help us better meet the changing needs of our researchers and civil society. Read…

Research

How can we use new digital technologies in research and teaching? And how far are we in developing independent cloud solutions? These questions took centre stage at Our Digital Future, where the university, the LUMC, Leiden University of Applied Sciences and Naturalis met to share their expertise.

Two projects from Leiden University have been awarded a grant through the programme.