Organisation

The United Nations has declared May 22 the International Day for Biological Diversity. A moment of global reflection on everything on Earth and its indispensability. Anthropologist Marja Spierenburg stresses the importance of the interaction between natural and social sciences in addressing sustainability…

The Leiden-Delft-Erasmus (LDE) alliance signed a collaboration agreement with the Indonesian Ministry of Education, Culture, Science and Technology on 23 September.

Paul Wouters came to the Faculty of Science for a few months to help with organising day-to-day issues after the previous dean left. This has involved rather more than he expected. ‘I can now really understand why every faculty has its own dean.’

Where to study ’politics’? According to the QS World University Rankings, Leiden University is a good choice. In the 2021 edition, Leiden and The Hague retain their position in the top 25 of the most esteemed institutes worldwide. Within the Netherlands, we again claim the first position.

This practical guide is aimed at PhD candidates, Research Master Students, and early-career researchers from all academic disciplines. The instructions in the guide intend to inspire young researchers and to help them practice Open Science, by sharing all aspects of research as open possible.

During the annual graduation ceremony, not only were the Bachelor's students in Political Science honoured, but also those students who had written exceptional theses. The thesis prizes reward work that excels in originality, social relevance and academic quality. This year's winners are Ronny Wijling…

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,…

3 October University has become something of a tradition: a bit of science among the Leidens Ontzet celebrations. During the new and improved edition, the WetenschapsWarenMarkt (Science Market), visitors spoke to researchers about the nitrogen problem, making organs and the city’s connections with A…

On 11 January 2022, the Faculty of Social and Behavioural Sciences opened the new year during a livestreamed reception. Dean Paul Wouters and Executive Director of Studies Kristiaan van der Heijden were the hosts. After several faculty prizes were awarded, our Dean expressed a new year’s resolution…

The Faculty of Science launched the new Academic Year on 21 September with a special We Are Science talk show. Dean Paul Wouters starred in his role as talk show host and received a wide variety of guests.

Imagine scanning lion dung or a mouse dropping and instantly knowing exactly what and how much the animal has eaten. Thanks to new DNA techniques, this is becoming increasingly feasible. PhD student Kevin Groen tested how effective these techniques are at unraveling the diets of wild animals.

If universities and research institutions want to tackle unacceptable behaviour in academia, they must shift their focus from dealing with complaints to preventing such behaviour in the first place. This is what the Royal Netherlands Academy of Arts and Sciences (KNAW) has concluded. It has therefore…

Assistant Professor Briitta van Staalduinen has received the Best Dissertation Award from the American Political Science Association, Section on Class and Inequality. Her dissertation, Ethnic Inequality in the Welfare State, aims to reconcile the persistence of ethnic inequalities in expansive welfare…

Sander van Kasteren (Professor of Molecular Immunology) makes the invisible visible. He will explain more in his inaugural lecture.

To eat or get eaten. It describes the evolutionary race of snakes versus the mammals and birds that prey on these snakes. Muzaffar Ali Khan devoted his PhD to investigating the molecular mechanisms play of the evolutionary arms race, and has his promotion 16 February. What makes mammals and birds successful…

Emeritus Professor of Molecular Astrophysics Ewine van Dishoeck has been named a Citation Laureate by Clarivate, a research analytics provider. Clarivate considers her an influential researcher of the calibre to win a Nobel Prize.

During the LACDR Fall Symposium, Niek Kijk in de Vegte received the annual Suzanne Hovinga Award for the best master thesis. Niek performed his RP1 research under the supervision of Dr. Natalia Ortiz Zacarias and Prof.dr. Laura Heitman in the Molecular Pharmacology group at the Division of Drug Discovery…

After the lockdown, it was again possible to receive graduates and guests at the University. In recent weeks, BSc and MSc graduates from various study programmes were festively awarded their diplomas in a special corona-proof setting in the restaurant of the Gorlaeus Lecture Halls building. This resulted…

Some children start life with a disadvantage. Sometimes even before they are born. A new research project involving Professor Wessel Kraaij of Leiden University investigates how data science can help give these children a good start in life.

After diving into the murder trial of nurse Lucia de Berk, statistician Richard Gill became a leading expert on the statistics of medical murder cases. Together with colleagues, he now wrote a peer reviewed report about the statistical missteps in past medical murder trials. It gives recommendations…

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

Organisation, Social

October and November not only bring a number of proud Political Science graduates, it is also the season to determine who wrote the best bachelor’s thesis. For 2021-2022, fifteen theses were nominated. During the various graduation ceremonies the two final winners were announced: Essi Maria Teresia…

As of 1 August, Anika Bexkens has been appointed Professor of Evidence-Based Clinical Practice for Child and Adolescent Mental Health. Her research focuses on the optimal application of scientific knowledge in practice. ‘Scientists and practitioners often speak past each other.’

For their research many neuropsychologists use the brain scanners at the LUMC. At the start of the pandemic, the rules for visiting the hospital became stricter and a large amount of psychology research looked as though it would fall through. Thanks to good protocols the researchers can now pick up…

The Medialab+ offers interactive workshops for students in which they practice digital skills and science communication and become acquainted with professional equipment from the Humanities Hub in Huizinga. These workshops take place as part of courses and are planned in consultation with the course…

A festive opening with plenty of orange, a well-attended lecture by Ionica Smeets and an unforgettable party for staff and students. We celebrated the opening of the new building together. Join us as we look back on this exciting week of celebrations.

Organisation

During a well-attended Studium Generale lecture at Rijksmuseum Boerhaave, Professor Ellen de Bruijn demonstrated how hormonal fluctuations influence the female brain. 'We urgently need more attention for the mental health of girls and women during transitional periods.'

For over a year now, the James Webb Telescope has been sending stunning images that exceed astronomers’ expectations. The photos are fascinating to see, but what exactly are we looking at? Assistant professor Melissa McClure explains.

Seven Leiden professors have been elected as members of the Royal Netherlands Academy of Arts and Sciences (KNAW). In total 23 new members will be inaugurated on Monday 13 September.

Astronomers in Leiden have used the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile to produce a new detailed image of the centre of our Milky Way. This allows them to investigate the life of stars in the most extreme region of our galaxy. The Leiden scientists, led by Katarzyna…

The Dutch Research Council (NWO) is investing 197 million euros in 11 infrastructure projects that will be of great value to science and society. Leiden University and the Leiden University Medical Center (LUMC) are participating in eight of the eleven proposals.

Festival

Nearly 19,000 runners lined up at the start of Leiden Marathon on Sunday, among them students and staff from the university. For some this was their first race, for others a highlight of their year. This year, in celebration of our 450th anniversary, they ran in a special jubilee t-shirt.

For her bachelor’s thesis, Molecular Science and Technology student Madouc Bergers synthesized her own molecule that can inhibit the breakdown of sugars. Although most students do not even manage to make one building block, Madouc made three. Partly because of this, she has been nominated for the Science…

PhD candidate Joeri Schoenmakers works at the LIC and describes how his days revolve around new experiments, oxygen-free reactions and supervising students. The mix of freedom, variety and a close-knit team means he enjoys both his research and his teaching role every single day.

Educators in European science museums sometimes think rather differently about the definition of an 'authentic' object. They think carefully about how they present those objects to teach visitors something or make them curious. This was shown in research by the Science Communication & Society department.…

2021, again, sees a rich harvest of bachelor theses in Political Science. Students have been tackling fascinating subjects—ranging from European solidarity in the COVID-19 crisis to the representation of women in democratically elected parliaments—and crowning their research projects with interesting,…

Arnold Tukker and Mingming Hu (CML) will look for urban resilience solutions in the Dutch-Chinese ReSURE2 project that received 1.1M euro.

ICT