Evolution is all around you every day. This is the message of a Massive Open Online Course (MOOC) of Leiden University and Naturalis that is offered free of charge to anyone interested.

How many species of plants, animals, fungi and moss live in the gardens surrounding the Oude UB at Rapenburg 70? On Tuesday May 20th, the Citizen Science Lab led an investigation in the front gardens and back courtyard of the Old UB at Rapenburg 70, together with 15 colleagues working in that buildi…

Fathers and mothers bring children up differently. Mothers are more likely to correct children for bad behaviour, for example. This is one of the findings of PhD research by Liesbeth Hallers-Haalboom. PhD defence 7 October.

Diversity and inclusion are important priority areas at Leiden Law School. The D&I Sounding Board was set up to gain a better understanding of the role and extent of D&I across the length and breadth of the faculty. Ten members of staff from all sections of the faculty have joined this Sounding Board…

Science for Sustainable Societies offers an exciting combination of theory and practice. While analysing and examining relevant topics from both the natural and the social sciences domains, you will also gain lots of hands-on experience. Interactive learning is an important part of the programme. You…

knowledge-based social

SRON Netherlands Institute for Space Research is moving. In 2021, the Utrecht branch will settle in South-Holland. Pieter Dieleman is group leader at SRON. He tells why the upcoming move is such a good idea: ‘SRON is a connecting factor between Delft and Leiden.’

How did slaves in the eighteenth century manage to empower themselves and their kin, and why did this become all the more difficult in the nineteenth century?

Leiden chemists, together with colleagues at the University of York (UK) and Technion (Israel) have discovered a small, sugar-like molecule that maintains the integrity of tissue around a tumour during cancer. This molecule prevents tumour cells from spreading from the primary cancer site to colonise…

‘Statistics? I hated that hard subject in school’, statistician Sanne Willems is often told. And that is a pity, she thinks, because statistics doesn’t necessarily have to be difficult. Together with two former fellow students, she set up a Statistics Communication section for good communication on…

Researchers from the THEOR CHEM group at Leiden University strive to set new benchmarks in the accuracy of the prediction of interaction energies between molecules and metal surfaces.

Bachelor projects are available in

Many adults and juveniles who are in prosecuted in criminal courts also have financial problems. This applies to almost one third of probation cases and around 60% of all prisoners.

This year, two Leiden physicists have earned a prestigious ERC Starting Grant. With a budget of 1.5 million euros, this is one of the largest individual grants for scientists.

It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…

LDE-FISIP UI Joint Minor students brought various issues in the Greater Jakarta Area to their final assignment in the form of policy briefs. The policy briefs are based on a month of research on the topics of waste management, the myth of the Jakarta dream of the younger generation, urban farming, energy…

Knowledge and culture subproject 2:

In the search for new medicines against diseases such as cancer, a Leiden team has developed a new workflow. This approach combines artificial intelligence (AI) with molecular modelling and is suitable for finding unknown and innovative drug structures, the researchers proved.

Michiel Pronk defended his thesis on 30 March 2016

There is much wrong with the taxonomy of the plant genus Phyllanthus. Roderick Bouman of the Hortus botanicus Leiden has developed a new phylogeny for Phyllanthus and exposes the evolution of the plant genus. Publication in TAXON.

Numerous beads and pendants of amber, jet and bone have been found in Dutch Neolithic and Bronze Age context, both in settlements and in graves. Because ornaments are personal items, they are closely linked with people’s identity.

Today’s socio-economic challenges aren’t new. In the centuries after the retreat of the Roman state people with different backgrounds and with different ways of life somehow managed to build and maintain a complex economic system in northern Gaul that would produce the ruling dynasties of Europe. By…

In the Humans of Humanities series, we will do a portrait of one of our researchers, staff members or students, every other week.

A vibrant chronological narrative of ceramic manufacturing practices in the valley of Juigalpa, Chontales, Nicaragua (cal 300 CE - present)

This research will investigate which aspects of On the sublime received attention in the intellectual milieu of the seventeenth century and how the sublime found its way in the political and artistic discourse of that time. Thus I aim to shed light on the role of art in politics and society in this…

How are you doing in these strange and unprecedented times? That’s the question we are asking our colleagues in this series. Jasmijn Mioch, for instance, HRM Learning & Development Adviser.

The Dutch universities as a whole are lobbying for a 'normal' academic year from the end of August, where on-campus teaching will be possible. It's a view that Leiden University shares. Rector Hester Bijl talks about what teaching will be like then. She also looks back on a year of lockdown.

Physicists have studied the astrophysical neutrino signal as reported by the IceCube collaboration from a different angle with their ANTARES detector. The Milky Way centre was an obvious prime suspect to be a source, but this hypothesis is now only closer to debunked than confirmed. Publication in Physical…

Insults have a stronger effect on people from honour cultures because their honour is at stake. Escalations can be prevented if their sense of honour is left intact or if the perpetrator expresses sincere regret Leiden psychologist Said Shafa has found.

It is a familiar phenomenon: you ask the assistant on your phone to call your mother, but it calls a friend instead. Tom Kouwenhoven, PhD student in the SAILS programme, investigates how humans and Artificial Intelligence (AI) can better communicate with each other, so that these kinds of situations…

They might not have had Twitter, but they did have brochures (pamphlets), the Roman Catholics and ‘modern’ Protestants between 1840 and 1870. In these, they launched a passionate attack on each other’s ideas. Ineke Smit has catalogued the brochures from the collection of the University Library and outlined…

Queen Juliana was not, as is often claimed, a monarch with an unstable character who was completely under the influence of spiritual healer Greet Hofmans. Furthermore, her religious circle of friends was not a sect with a political agenda. That is what Han van Bree concludes on the basis of a new archival…

Studying ancient materials and the way they were made can give us groundbreaking insights into the past. Not only that, the interplay between people and materials is highly relevant for society today, says Ann Brysbaert, Professor of Ancient Technologies, Crafts and Materials, at the Faculty of Archaeology.…

Kerstin Perez has reached the position of Assistant Professor of Particle Physics at the renowned Massachusetts Institute of Technology (MIT). For people from minority groups this is by no means a common experience. Perez will explain how improvements can be made at the annual Diversity and Inclusion…

Farmers do not love them all. Microbes can cause tragic consequences for crops. Even the presence of just one pathogenic fungus or bacterium can drastically reduce yields. Still, there are exceptions. In that case, a pathogenic microbe is present in the soil, but does not cause any harm. Adam Ossowicki…

The scientific world is under increasing pressure from all directions: the money that society invests has to show clear returns. ‘The best thing we can do is to go along with this development,' says Ivo de Nooijer, Director of Luris, Leiden University's valorisation institute.

Serious forms of anxiety concerning other people’s opinions can hinder teenagers at school in social interactions or carrying out tasks. Psychologist Anne Miers is looking for ways to reduce this so-called ‘social anxiety’.

What was the name, the appearance, development and the playing technique of the cello in the Low Countries between 1600 and 1800 and what music was composed for it?

To understand which groups turn against their government, you need to understand the political culture in which they grew up, what they expect from a ‘state’ and what alternatives there are. With its long interdisciplinary experience, ASCL is often considered to be a regional expertise centre. But this…

Impressions by Martin Küster, Master of Arts.

Speech Prosody 2024 includes seven special sessions. When making a submission, authors are asked to indicate whether they want their paper to be considered for a special session. You can find descriptions of each below.

The EL CID introduction week has come to a close. This was the week when first-year students got to know one another, the city and their study programme better. See the week in photos.

On Thursday, November 20, 2025, the Leiden Jewish Studies Network celebrated the launch of the book Still Lives: Jewish Photography in Nazi Germany (The University of Pennsylvania Press, 2025) co-authored by Ofer Ashkenazi (Jerusalem), Sarah Wobick-Segev (Hamburg), Shira Miron (Basel) and Rebekka Grossmann…

Lecture

The leading argument of this doctoral thesis is that Aristotle’s text De Interpretatione is of methodical relevance for present-day philosophical thinking. In the era of science and technology, the status of philosophy has become problematic.

PhD Research Projects at LUCDH and Affiliated Faculties

The League of European Research Universities (LERU) calls for greater appreciation of fundamental research that does not have an immediate application. A working group headed by Geert de Snoo, dean of the Leiden Faculty of Science, issued a memorandum on the subject on 29 August.

How to innovate education? In this series, the Honours Academy highlights examples from their educational testing ground that aim to inspire. Today: pioneering with podcasts. What are the do's and don'ts? Two teachers and a student share their thoughts.