What are the main issues leading to polarisation and division? What is the role of social exclusion in these processes? How can we inform and design better policies to safeguard young people from falling prey to intolerance and polarisation? The DRIVE project, led by Leiden University in The Hague,…

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 international team led by Leiden astronomers has, after years of searching and defying the boundaries of a telescope, for the first time directly captured polarised light from an exoplanet. From this light they can deduct that a disk of dust and gas orbits the exoplanet. In this disk moons are possibly…

A new way to decipher the light from distant worlds could give us unmistakable evidence of extraterrestrial photosynthesis, and maybe alien plants, finds astronomy author Colin Stuart in the New Scientist. In his article, he describes the work of the group led by Leiden astronomer Rob van Holstein.…

One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…

It appears to be a paradox: ultra-thin material that absorbs all the incident light. Nonetheless, it does exist. Two Leiden researchers report on their research in ‘Applied Physics Letters’. The article is among the Top 20 of the most downloaded articles of this reputable journal in May.

Water is all around us and is vital for all aspects of life. Studying the various compounds and life forms that inhabit natural waters lets us better understand the world around us.

Social assistance and minimum income benefits are important instruments as a safeguard against low income and poverty. There have been major developments in minimum income benefits both in developed and developing countries over the last decades. Our study collects several empirical studies regarding…

The Politics and Governance department of the Institute of Public Administration focuses on the complex interaction between politics and governance. Our research explores contemporary issues such as the impact of global crises, populism, and polarisation at various levels of government.

When we think of politics, we tend to think of adversary, antagonism, polarisation, a struggle for power. But politics should serve positive purposes, as well. Political psychologist and meditation teacher Femke Bakker (Leiden University) thinks that positive politics is first and foremost about tolerance.…

Political scientist Wouter Veenendaal (Leiden University) provides an in-depth case study of clientelism in Malta, the smallest member state of the European Union. He reveals that not only that patron–client linkages are a ubiquitous feature of political life in Malta, but also that the smallness of…

NIMAR is the Netherlands expertise centre for Moroccan Studies. Starting 2016, NIMAR is a part of the Faculty of Humanities of Leiden University. NIMAR organises lectures, facilitates research and actively adds to the knowledge of Moroccan languages, cultures and society in The Netherlands.

Is there extra-terrestrial life out there? It now looks as though we can sketch out an answer to this enduring question. Leiden Observatory is helping to build new instruments to find the most promising exoplanets.

Can behaviour in an online economic game be understood as a representation of radicalisation propensity?

This article presents the findings of an explanatory study into the perceptions of Dutch Muslims in The Hague concerning pre-emptive counter-extremism and de-radicalisation policies.

Terrorist attacks are not an end in themselves, but a means of creating unrest and fear. Terrorism policies and research should focus more on managing fear and social unrest.

The Diversity and Inclusion domain consists of a three-day masterclass on Inclusive Leadership for Depolarisation (English). There are also Dutch courses on Diversity & Inclusion at the Centre for Professional Learning, Leiden University.

As a university we stand with both feet firmly in the world. Internationalisation is in Leiden’s DNA: from the very foundation of our university, the ideal of the free academy has always attracted researchers and students from across the whole world.

The Netherlands Institute in Morocco (NIMAR) is a Leiden University institute. It is financed by the Ministry of Education, Culture and Science and the Ministry of Foreign Affairs.

This paper examines the need and possibility for developing online resilience-based approaches in response to COVID-19 vaccine conspiracies, often linked to the far right.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

What can we learn from the diverse institutional logics of smart government in East Asia to inform cross-institutional AI governance?

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)

The Terrorism and Political Violence research group at Leiden University examines the causes of radicalisation, the tactics of extremist groups, and the effectiveness of counter-terrorism policies. We also explore the role of the media and the influence of postcolonial legacies in the Global South,…

The key subject of the research programme Cities, Migration and Global Interdependence 1500 - Now (CMGI) is Inequality (at local, national and global levels).

INFLUEX examines the influence of experts on public policy, aiming to define, measure, and explain their role in democratic policymaking

In this specialisation you will focus on the challenges facing modern representative democracy. The programme offers a structured, intensive curriculum balancing substantive and skills-oriented courses, including a number of elective seminars, plus a research thesis.

Having encountered a series of shocks that pose an existential threat to our livelihoods, our societies have become increasingly polarized.

Health workers have always sought ways to fight disease in vulnerable groups in the population. It is now clear that such research also benefits more prosperous countries. African worm infections and innovative thermometers have shown Leiden researchers how to fight diseases of affluence and keep health…

A cautious response to a crisis or terrorist act avoids the creation of a culture of fear. This is another way to reduce our vulnerability to terrorism.

Leiden University commemorates its victims of the war and pays tribute to all members of the university community who resisted injustice. Rudolph Cleveringa, for instance, the dean of the law faculty who gave a protest speech in 1940 after his Jewish colleagues were fired. We honour their memory through…

Trust in institutions is one of Leiden Law School's four research focus areas.

Understanding the evolving landscape of extremism in the 21st century.

Astronomers Professor Christoph Keller and Dr Frans Snik will be developing a commercial module for measuring fine particulates. They have been awarded an STW Demonstrator subsidy of 138,000 euros.

This research project is funded by a subsidy from Instituut Gak.

Astronomers at ASTRON and Leiden University have used the LOFAR radio telescope to discover a 'brown dwarf' – a faint object more massive than Jupiter, but significantly less massive than the Sun. The discovery of the object dubbed Elegast, opens up a new path that uses radio telescopes to discover…

Within the Faculty of Social and Behavioural Sciences (FSW), D&I translates as the diversity of backgrounds, perspectives, and identities among both students and staff.

Former PhD, Bachelor and Master students of the Van Exter Lab

As part of his PhD trajectory, Esteban Szmulewicz was invited to give a presentation at a seminar titled 'Challenges of representative and participatory constitution-making: insights from the recent Chilean processes'. The seminar was attended by colleagues affiliated with the Warsaw institution as…

On 8 September the students of the European Law Master gathered in the Lorentzzaal for the festive opening of their programme.

Students from Leiden University have launched The Nuance Project, a platform for respectful, open-minded dialogue on divisive issues. The aim is to foster connection and understanding among people even if their viewpoints differ.

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.

In the nineteenth century many Dutch people believed in the end of time and the coming of God's thousand-year reign. This belief effectively slowed down the process of modernisation that was taking place in the Netherlands at that time, concludes historian Rie Kielman. PhD defence 13 April.

Esteban Szmulewicz, a PhD candidate at the Department of Constitutional and Administrative Law, spoke at the annual Salzburg Global Weekend, organised by the Salzburg Global Seminar with the theme 'Democracy on the Front Lines'. Key speakers included Nobel Peace Laureate the Ukrainian Civil Rights defender…

Leiden University kicked off the first PhD Symposium ‘Institutions for Conflict Resolution’ (COI). COI is a nation-wide partnership that serves to implement the Dutch Legal Sector Plan (2019 – 2024). This partnership aims to preserve the authority and legitimacy of government institutions and the judiciary,…