James Webb life’s building blocks

Bacteria and fungi on organic dairy farms are significantly different from those on conventional farms. That was discovered by postdoc researcher Sofia Gomes and her supervisors Nadia Soudzilovskaia and Peter van Bodegom in collaboration with the Louis Bolk Institute and Naturalis Biodiversity Centre.…

Computer scientists from Leiden University and the University of Münster describe a new theoretical starting point for approaching difficult optimization problems. They can take into account several criteria simultaneously, instead of just one at a time.

We are pleased to invite abstracts for a conference on ‘Advancing Social, Economic, and Cultural Rights in a Polarised, Digitalised, and Unequal World’ to be held at Leiden University on 4 and 5 September 2025, in collaboration with Netherlands Network for Human Rights Researh (NNHRR).

An endless stream of publications, data and software accessible to all? Professor of Science Studies Thed van Leeuwen calls for a more human-centred approach and an overhaul of the PhD system.

‘If it rains later, then I’ll take the car.’ In order to reason, we use sentences containing ‘if’ every single day. But how does that work exactly in the Dutch language? Alex Reuneker wrote his 628 page dissertation on the subject. Ceremony on 26 January.

New sampling and analytical strategies give archaeologists a better understanding of the nutrition and survival of ancient populations. Publication in PLOS One.

How can we best tell the current generations about some of the darkest parts of our past? To answer this question, researchers from Leiden are working with the Gedeeld Verleden, Gezamenlijke Toekomst foundation on public programmes about the Dutch history of slavery.

Ramsey Albers wins Political Science Master’s Thesis Prize 2022

On August 27 – 31 2019, PhD candidate Maria Vasile participated in the IUAES 2019 Inter- congress in Poznan, Poland entitled "World Solidarities" and shares some of the insights from presentations she attended and found particularly relevant to the Food Citizens project.

Joanita Vroom and Mink van IJzendoorn have been awarded a grant of the Chastelain‐Nobach Fund, enabling them to continue their work at Gortyn, Crete. This project offers students opportunities to help uncover the archaeological mysteries of this important Roman and Byzantine city.

Leiden researcher Dr Ben Zonneveld has determined the size of the genome - the amount of DNA per nucleus - of wild tulips. His conclusion is that there are more than 87 wild species. Various possibly new species have been discovered.

What is leadership? Can it be taught, and if so, how? The International Leiden Leadership Programme (ILLP) helps students find their own style, say ILLP graduate Marko Simovski and his former coach Annah Neve in an interview: 'It’s about you, discovering you.'

Fossil Free against KLM on greenwashing, municipalities against Chemours on PFAS discharge, climate cases against Shell and ING Bank… There are many examples of recent civil lawsuits on sustainability. But does climate litigation in the civil courts actually have an effect?

Leiden University signed the Amnesty International ‘Let’s talk about YES’ manifesto on 10 March, confirming the university’s commitment to preventing sexual violence. Steps will also be taken to make sure that everyone within the university feels responsible for a culture in which sex is based on equality…

The most commonly used method for the taxonomic identification of tree trunks is wood anatomy. The number of experts in this area is decreasing, and education to become an wood anatomists takes many years. With the help of technology computer scientists of the Leiden Institute of Advanced Computer Science…

Leiden University is the highest scoring comprehensive university in the biannual valorisation ranking produced by Elsevier and Science Works. They calculate which Dutch universities best exploit their scientific capital, in economic terms and in terms of societal impact. .

On Friday March 25, student Pieter Pierrot will present his Media Technology MSc graduation thesis work. In 20-25 minutes Pieter will present his project, followed by 10-15 minutes public discussion. Everyone is invited to attend. The presentation is in English.

Carlotta Rigotti and Eduard Fosch-Villaronga have published a new article that offers an insightful and critical literature review on fairness and AI in the labour market as part of the BIAS project.

On 24 January 2020, eLaw attended the Annual Conference on Privacy and Data Protection (CPDP) in Brussels, Belgium. The overarching theme of the 13th edition was

Eduard Fosch-Villaronga from eLaw - Center for Law and Digital Technologies, and Hadassah Drukarch, explored the role of intersectionality within (rehabilitation) robot design, testbed, and standards. Being oblivious to these considerations may give way to the development of robots that fall short of…

Keep improving: that’s the philosophy of LEAN, a method to tackle practical problems at the workplace yourself. After a successful start in 2017, in 2019 a third group started working with the LEAN training in self-selected improvement trajectories. In October the participants received their diploma.…

A sustainable building that is both sports and examination centre. In September, a design team including architect Atelier PRO will begin to develop the plans for the new University Sports Centre (USC). Construction will begin in 2021, and the building is expected to be completed before September 2022.…

Psychologist Floor van Meer won the first Trial & Error Award for her research on the effect of being distracted while eating on eating behavior. This award from the Journal of Trial & Error (JOTE) honors the often underappreciated aspect of research: learning from errors. For her publication, Van Meer…

Thanks to fanatical lobbying various groups of citizens and traders had a lot of influence on the initial success of the Dutch colony in Brazil. This is the conclusion of Leiden PhD candidate Joris van den Tol, who defended his thesis on 20 March.

Thijs Bosker and Paul Behrens, Professors in Environmental Sciences at Leiden University College in The Hague, have received funding from the Leiden University Fund and the Gratama Foundation to work on developing a set of Local Actions: tangible and practical exercises that students can engage in…

A large research group involving Leiden University as corresponding Host Institution has been awarded a major European grant, the ERC Synergy Grant. This for research on how Europe developed after the fall of the Roman Empire with special attention to the yet underexplored but undoubtedly important…

At Leiden University, more and more exams are being done digitally instead of on paper. Originally, Leiden University would provide the large quantities of laptops needed for these exams. With rising demand for digital exams, however, the limits of this system were in sight. Now the Faculty of Archaeology…

This summer, everyone from Leiden locals to day trippers and tourists can take a guided tour of the prettiest University buildings in the centre of Leiden. Our exclusive Summer Tours offer a glimpse behind the scenes at the Academy Building, the P.J. Veth building and Bibliotheca Thysiana: buildings…

A female body equals a woman. Nonsense, says Professor by Special Appointment to the Socrates Chair Annemie Halsema. She argues that our sense of identity and social environment also determine our identity. ‘We should stop assigning people’s sex at birth.’

On 24 November a High-Level panel discussion on the occasion of the signing ceremony of the memorandum of understanding between the NATO Civil-Military Cooperation Centre of Excellence and the Institute of Security and Global Affairs and the Faculty of Governance and Global Affairs took place at Campus…

As the father of a family with four children, he already visited the Hortus regularly. Now Tom Schreuder also comes there for his work. Every day he travels from Lisse by bike. The new Director Operations calls it a ‘perfect match’.

IBL-researchers revealed in a new study that insects are successful on land because their eggs became protected against desiccation. An extraembryonic membrane in the egg, the serosa, helped insects to make the transition from water to land.

This academic year, researchers from both inside and outside of Leiden Law School took the opportunity to inform the interested public about their ongoing research during the monthly ILS Lunch Seminars. On Thursday 14 June, the last lunch seminar before the summer break took place. The festive ending…

Amid rising polarisation and discrimination, lawyer and human rights activist Lilian Gonçalves-Ho Kang You wants to show in her Cleveringa Lecture on 26 November how dangerous exclusion is.

Understanding the behaviour of tiny droplets in our cells could aid the search for new treatments. A team of Leiden researchers has developed a groundbreaking method to study how these droplets transition from liquid to solid. This change plays a role in various diseases, including neurodegenerative…

On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.

As of 1 September 2015, Michiel van Groesen is Professor of Maritime History at Leiden University. He succeeds Professor Henk den Heijer, who retired and gave his farewell lecture at 25 September. Den Heijer held the chair from 2010 to 2015. Before coming to Leiden Van Groesen worked as Associate Professor…

Inviting a navy officer to talk about piracy, inspiring critical thinking and offering to help with finding internships. Students appreciate that and therefore nominated Anita van Dissel, who teaches Maritime History, for the Lecturer of the Year Award.

Vedran Dunjko appointed to full professor of quantum computing at Leiden University, the Netherlands.

Ever heard of conversational artificial intelligence (AI)? Anyone who has ever interacted with Siri or Alexa is familiar with this technology. We use conversational AI every day these days and it is becoming increasingly important in service and sales. A consortium of Dutch scientists and companies…

Since its discovery thirty years ago, it remained a mystery: how does the body’s own marijuana move between nerve cells in the brain? Mario van der Stelt and his research group have now uncovered the answer. This insight could aid the development of new treatments for pain and neurological disorders…

Today’s world faces large-scale climate change and other environmental disruptions. Meeting these challenges involves major adjustments to economy and society, with substantial potential for conflict and violence. This dialogue assembled leading authorities on the relationship between climate and peace,…

Fear and hatred of Muslims are rising rapidly to the surface in the United Kingdom, Assistant Professor Tahir Abbas writes in his new book. British politicians and journalists play an insidious role in this, he says.

Soil salinity is affecting large areas in the world and millions of farmers are faced with decreasing yields and many are even forced to migrate . Dutch scientists (Prof Dr. Gerrit van Straten (Wageningen University), Prof. Dr. Peter van Bodegom (Leiden University), Prof. Dr. Jelte Rozema (VU University…

On Saturday October 16, the special exhibition ‘Shared Sky: Canvases of the Universe’ opens in the Old Observatory in Leiden. The exhibit takes a cultural look at the starry sky by Aboriginal Australian and South African artists, and features colorful artwork that explores how these Indigenous cultures…

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Since April 2023 the current war in Sudan has brought larger death, destruction, and displacement than any other ongoing armed conflict on earth. This dialogue brought together wise thinkers and excellent speakers from academia, civil society, policymakers, and youth to discuss how peace can be brought…

Last year, chemists Dennis Wander and Hermen Overkleeft contributed to an important discovery about a widely used cancer drug. Their research has now been recognised as Finalist for the PNAS Cozzarelli Prize in the Biomedical Sciences class.

More efficient use of phosphorus fertilisers would make it possible to meet food demand in 2050, without using more of the world’s land for agriculture. This is what environmental scientists José Mogollón and colleagues have discovered by working out various future scenarios for food production and…