Ad IJzerman, Emeritus Professor of Pharmacochemistry, was made a Knight of the Order of the Lion of the Netherlands on 26 April. He was presented with the royal honour by Mayor Elbert Roest in the town hall in Bloemendaal.

Prof Harold Linnartz has been reappointed Director of Education of the bachelor and master programmes of Astronomy. The appointment is for a period of four years, until 1 October 2026.

This page provides updates on the protest today at the Academy Building and Hortus botanicus in Leiden.

An article about our Mathematical Institute (MI) appeared on 23 June in the University newspaper Mare.

Facility, Organisation

Facility

It’s election time again on Wednesday 18 March – this time the municipal elections. Two Leiden University buildings are being used as polling stations: Oude UB in Leiden and Spui Campus in The Hague.

PhD, Staff

In his leaving interview, Martijn Ridderbos doesn’t have to think long when asked what he is most proud of. ‘Bringing people together; creating things together. Reducing the gap between researchers and the staff who support them because the latter are essential. We’ve achieved that and the seeds have…

With great sadness we share the news that Prof. Harold Linnartz passed away suddenly and unexpectedly on Sunday 31 December 2023. We are all in shock, and our thoughts are with his wife and children, other family, and friends. Harold was at the heart of our institute, as a researcher, as a supervisor,…

An extra-long procession with musical accompaniment will mark the beginning of the university’s 450th birthday celebrations on 7 February.

Annetje Ottow is stepping down as President of Leiden University’s Executive Board on 1 September 2025 after almost five years in the role. She looks back at the highs and lows – and ahead to what’s next.

The University Council meeting on 2 June was largely dominated by the demonstration, occupation and policing in The Hague last month.

There are many tributaries to Rosalin Kuiper’s story and they all lead to the sea. The 28-year-old sailor was one of the five-person Team Malizia in the world’s most prestigious sailing competition: the Ocean Race.

Professor Marc Koper researches how you can use electrical energy to make or break chemical bonds. He has just been awarded a Spinoza Prize, the Netherlands’ highest personal science award, for his fundamental research into how this form of electrolysis works.

Leiden University has taken 14th place in the UI Green Metric, a global sustainability ranking for universities.

Organisation

How did a fifteen year old paper receive an award? It happened to LIACS professor Todor Stefanov and his colleagues. Their paper was awarded with the Test of Time Award, an international award for papers that had the highest impact over time. This paper in particular is about Daedalus, a framework used…

SRON, the Netherlands Institute for Space Research, is holding an open day on Sunday 25 September. It has had a branch at the Leiden Bio Science Park since 2021 and works closely with Leiden University.

The Leiden University Fund and dsm-firmenich are proud to open the call for the Krijn Rietveld Memorial Awards 2025. These annual prizes honour innovative research at the Faculty of Science that contributes to a more sustainable world and has a clear societal impact.

Facility

In a few weeks’ time Carel Stolker will be retiring as Rector Magnificus. In a double episode of the Science Shots podcast, we take stock: what were the key lessons, how has the coronavirus crisis been and of course, what will he do to avoid the post-retirement void? Stolker shares his experiences in…

Plants not only sense when they are touched, but they can also adapt to it. For example, by strengthening or defending themselves. But how do plants do this? The Green TE (Green Tissue Engineering) consortium has been granted a Gravitation grant of almost 23 million euros to investigate exactly this…

Professor Michiel Kreutzer, Dean of the Faculty of Science at Leiden University, will move to Delft University of Technology (TU Delft) on 1 May. Alongside his professorship, he will focus on university initiatives in the field of innovation in education.

Facility

Leiden and The Hague have an extra 450 trees thanks to a special campaign to mark the 450th anniversary of the Relief of Leiden and Leiden University’s foundation. Over the past few months, Stadslab Leiden has worked on an initiative to plant young trees with the residents of the two cities.

The Executive Board has appointed Prof. Koen Caminada as Dean of the Faculty of Governance and Global Affairs. Caminada has served as interim dean since April of this year. His new appointment is from 1 September 2024 and is for a period of four years.

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.

Aline Vidotto has been appointed professor of Stellar and Planetary Astrophysics at the Observatory from 1 February. Vidotto has been with the university for 3.5 years and for her, the appointment is ‘a milestone in her career.’

Facility, Organisation

Library

Leila Akkari was appointed Special Professor of Cancer-immune interactions at the Leiden Institute of Chemistry (LIC) on 15 December. Akkari is a researcher at the Netherlands Cancer Institute (NKI), where she studies the relationship between cancer cells and the immune system, with a particular focus…

Are you curious about how the human skeleton works? Discover this and more on 3 October in Leiden and on 4 October in The Hague.

Dutch universities have responded positively to the new coalition plans. Investments in education, research and innovation will be prioritised, and the stringent cutbacks proposed by the previous cabinet will be reversed. Optimism is the order of the day in Leiden, though caution is advised.

The university's CO2 footprint - a visual representation of Leiden University's environmental impact - is calculated every year. The CO2 footprint for 2020 shows a striking break in the trend in terms of energy use, mobility and waste.

‘A Muslim and a Jew in the house of God.’ This is how historian Nadia Bouras introduced her recent conversation with colleague Sara Polak in Leiden’s Hooglandse Kerk. They discussed the rising tensions since the outbreak of the Israel-Hamas war. ‘Dare to ask each other questions.’

Rich, white, urban: Western politicians often represent a small segment of the population. Political scientist Hélène Landemore advocates for a more inclusive democracy. She will deliver the Cleveringa Lecture on November 26.

A professor from Leiden University, together with a former employee (who is also the professor’s partner), has been guilty of long-term unacceptable and often transgressive behaviour in the form of abuse of power and manipulation. This behaviour led to a culture of fear among staff who were largely…

Lawyer, economist, politician and women’s rights activist Lizzy van Dorp is the 100th entry in our Top 450. Who or what is your favourite?

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Whether a microbe is beneficial or harmful to a plant can now be predicted with high accuracy thanks to bacLIFE. This bioinformatic tool with an intuitive interface makes it much easier to unlock the secrets of bacterial genomes. A group of Leiden biologists presented it in Nature Communications.

Gianne Derks is the MI’s new scientific director from 1 May. She has worked abroad longer than in the Netherlands and, after more than 27 years in Surrey, she dreams in English. Who is this new director and who or what managed to entice her to make the move to Leiden?

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Search engines are getting better at answering our questions. And chatbots are increasingly likely to search the internet for relevant sources. ‘Search engines and chatbots will become more closely entwined’, says Professor Suzan Verberne.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

More than 700 visitors got to know the Science Faculty during the Leiden Science Family Day. People of all ages could enjoy fascinating experiments, tours, interesting lectures, spectacular nitrogen shows and various workshops. It was an informative day with many (future) scientists, amazement and,…

A microscope with incredible sharpness that leaves samples unharmed – Guido Stam helped develop one. During his PhD research, he combined light and electrons to study biological samples. ‘We can now measure things that simply weren’t possible before.’

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.