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Using artificial intelligence is more complicated for the government than for companies. Bram Klievink, Professor of Public Administration, aims to identify the problems and find solutions.

The logo of Leiden University, with letters as small as a bacterium. Researchers from LUMC and the Institute of Biology have created the smallest logo of our university ever produced. It is a piece of fun with a serious real-world application: the new microscope with which the logo was made allows scientists…

It is with deep sorrow that we share the news that our dear colleague Andrea Evers passed away on Monday, 4 August 2025. Since 2013, Andrea had been affiliated with the Faculty of Social and Behavioural Sciences at Leiden University as Professor of Health Psychology. She was an undeniable driving force…

PhD-programmes, specialized in artistic research, docARTES and PhDArts join forces on March 22 and 23.

By a stroke of luck, a team led by Dutch PhD student Martijn Oei has discovered a radio galaxy of at least 16 million lightyears long. The pair of plasma plumes is the largest structure made by a galaxy known thus far. The finding disproves some long-kept hypotheses about the growth of radio galaxie…

Andrea Evers is the new Professor of the brand-new unit of Health, Medical and Neuropsychology. She's getting off to a flying start in Leiden with a consolidator grant of the European Research Council (ERC). Her ambition? 'To work together with other disciplines; that way we can arrive at new insigh…

Although Islamic State has largely been beaten, for now the Jihad scene in the Netherlands is more than alive. That is what professor Edwin Bakker (terrorism and counterterrorism) recently said in an interview in the Algemeen Dagblad.

Over 1600 astronomers and space scientists will gather online from 29 June until 3 July for the annual meeting of the European Astronomical Society (EAS). The virtual meeting will also host NAC 2020, from 1 July until 3 July: the 75th Conference of the Royal Netherlands Astronomy Society (NAC).

From a Tuscany escape room to scientific illustrations of flowers, and from Chinese movie subtitles to innovative education methods for children, every subject imaginable was covered at the first ever Honours College Conference. ‘You get the chance to break away from the standard study path.’

Even with state-of-the-art technology, it is almost impossible to see: a cosmic neutrino. Yet scientists have managed to image this particle with a deep-sea telescope. And that could help to better understand our universe. Leiden particle physicists collaborated on this ambitious project, published…

The radio telescope LOFAR, with a major contribution from Leiden Observatory, has produced the most detailed radio map of the Universe ever made. Never before have so many cosmic radio sources been captured in a single survey: 13.7 million.

Rich countries are getting richer because of environmentally polluting (construction) investments from the past, largely at the expense of poor countries. This was shown by long-term economic and environmental data. 'The gap between poor and rich countries is widening.' Scientists from the Leiden Institute…

From Monday August 22th until Friday August 26th, The Hague Orientation Programme (The HOP) will take place. The first-year students of Leiden University in The Hague will get to know the city, their study and the university, the student life and their fellow students.

Prof. Andrea Evers is a health psychologist who studies the role of behavioural factors in health and disease. As a Medical Delta Professor, she is now affiliated with Leiden University, TU Delft and Erasmus University. In that position, she conducts research at the intersection of various disciplines.…

Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

Academic studies or an academic career are a big challenge if you are deaf. Particularly in Africa, where many countries don’t even have secondary schools for the deaf. A team of Leiden academics has organised the first summer school for and by deaf academics on the African continent, in Ghana. We spoke…

Iranian molecular plant biologist Salma Balazadeh started her career in Germany. Now she sets up a research group in Leiden to study stress in plants to secure global food supply. Her outlook on women in science in the context of the International Day for Women and Girls in Science, 11 February.

Researchers at Leiden University have created a unique model that mimics how disease develops after a dengue infection. This 'dengue-on-a-chip' model helps them study the virus more effectively. The timing is crucial, as climate change is causing dengue to spread worldwide.

For the first time since the establishment of Leiden University, the Open Days took place online. On Friday 30 and Saturday 31 October high school students visited 'our Faculty' on the newly designed online platform of the University. Through study programme presentations, an information market, video…

An international team led by Leiden astronomers has taken the first-ever image of a young, Sun-like star accompanied by two giant exoplanets. The researchers used The European Southern Observatory’s Very Large Telescope for this, known as ESO’s VLT. Images of systems with multiple exoplanets are extremely…

It is the largest database for space ice yet: The Leiden Ice Database for Astrochemistry: LIDA. Created by astrophysicists at the Leiden Observatory, LIDA includes not only hundreds of measurement data, but also software to examine astronomical observations and prepare new measurements with the James…

Imagine that you have a chronic skin condition, characterized by red patches of itchy, scaly skin. You regularly notice people staring at your skin and sense their reluctance to shake your hand. Or imagine that you have Parkinson's Disease, causing your hands to tremble and making it difficult for you…

De opening of the Academic Year 2021-2022 took place on Monday 6 September 2021 in Pieterskerk church.

Psychological processes have a major effect on the course of a disease and the effects of medical treatment. Researchers in the field of Psychoneurobiology examine the interactions between body and mind. They investigate the effects of stress as well as the effect of placebos and nocebos, which can…

Positive expectations can influence sensations of itch and evoke placebo effects, whereas negative expectations can trigger nocebo effects in itch. There is evidence that placebo effects can occur even when people know that they are taking a placebo. Little is known about how these so-called open-label…

The importance of diversity and inclusion within society and its institutions can never be understated. In an interdependent, globalised world, we are more connected than ever, but we also face the risks of being more polarized than ever due to misunderstanding and misinformation. It is, therefore,…

Within the FSW, we have put together a core team with contacts in the individual Institutes and at the Faculty level.

Within the FSW, we have put together a core team with contacts in the individual Institutes and at the Faculty level.

The major aim is to examine the potential of learning the body to produce a similar physiological (autonomic, neuroendocrine, or immune) and physical (e.g., desensitization of persistent physical symptoms) response to placebo medication than to active medication (pharmacological conditioning). If proven…

This project is aimed at 1) elucidating the role of attention in itch and pain, including orientation, and attentional disengagement (i.e., directing attention away) from itch and pain; and 2) modifiability of these attentional processes.

Somatic symptoms, such as pain, itch, and fatigue have been shown to have a bidirectional relationship with mental symptoms. Although acute somatic symptoms serve some adaptive properties, chronic symptoms can instead lead to interference in daily activities and lower quality of life.

Is it possible to pharmacologically condition oxytocin responses in healthy individuals and identify the neural circuitry underlying such conditioning?

The major aim is to develop, evaluate, and implement disease-generic cognitive-behavioral interventions through the internet in order to optimize tailored health care for patients with chronic somatic conditions.

The modification of risk factors and related health behaviors lies at the very core of adequate cardiovascular risk management, yet evidence shows that the majority of people with cardiovascular disease (CVD) fail to achieve a healthy lifestyle in the long term. The main objective of this project is…

Historiography of science is in its current self-image a non-evaluative discipline. Its main goal is to understand past processes of knowledge formation on their own terms. In the last few decades this approach has greatly improved our understanding of the phenomenon of science. Yet, something strange…

The Leiden Healthy Society Center is a joint initiative of Leiden University's Faculty of Social and Behavioural Sciences and Leiden Municipality. The LHSC brings together wide-ranging knowledge, initiatives, and issues related to health and well-being in Leiden, and stimulates and facilitates cooperation…

The major aim is to determine the psychophysiological responses to stress and stress-management interventions and to examine the role of stress and stress-related psychophysiological mechanisms (e.g., cognitions, behaviors, and physiological stress responses) in both healthy and medical populations.

What role play stress and fear in forming of nocebo hyperalgesia?

We aim to create an innovative e-learning and virtual reality training that helps healthcare providers to optimize placebo effects and minimizes nocebo effects via their communication.

A living language?

Leiden University has been an attractive destination for scholars ever since 1575. Our staff members welcome international colleagues to campus to discuss issues from the past, and how we should presently understand the past. ‘Leiden Conversations in History’ is a series of dialogues between historians…

We are becoming ever more dependent on automation systems in our daily lives. Computer Science is more than programming; you integrate maths and logic into the development of systems and solutions that can be applied in all fields - from business to healthcare.

Healthy University Leiden was founded by working with a taskforce, a focus group and seminars.

Sonic Modernities situates Southeast Asian popular music in specific socio-historical settings, hoping that a focus on popular culture and history may shed light on how some people in a particular part of the world have been witnessing the emergence of all things modern.

Discover the Summer School Frontiers of Children’s Rights by Leiden Law Academy, with this year's theme of accountability and access to justice. Read more here!

The research addresses the question of “what is the impact of geopolitical changes to the pivot states in the Middle East? With special focus on Turkey, Iran and Saudi Arabia.”