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,…

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…

Inclusive leaders contribute to organisations where individuals feel welcome and where they can be themselves.

Tahir Abbas, Associate Professor in Terrorism and Political Violence at ISGA, explained how polarisation and social exclusion were at the root of radicalisation around the world. Papers ‘The News’ and ‘Dawn’ wrote articles about it.

Researchers from the Institute of Public Administration and the Institute of Security and Global Affairs at FGGA are launching a new research programme: Governing Polarized Societies (GPS). The programme will focus on the way in which governments are dealing with the increasing polarisation in society.…

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.…

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.

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…

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.

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.

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.

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

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.

The Diversity and Inclusion domain consists of a course on Diversity & Inclusion, a one-day masterclass on Inclusive Communication and a three-day masterclass on Inclusive Leadership for Depolarisation. In addition, it is possible to request a customized training for a company or organization, the so-called…

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.

The research group on terrorism and political violence studies the phenomena of terrorism-related and other politically motivated violence.

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.

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.

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…

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…

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

No evidence found that increasing migration leads to an increase in politically and ideologically motivated criminality. Migration flows have, however resulted in increased polarisation in the Netherlands.

How can the United Kingdom find coalitions for a Brexit? Alexandre Afonso, Assistant Professor at the Institute for Public Administration, analysed how the Members of Parliament voted up to now and presents a graph with possible coalitions on several withdrawal agreements. The article is published in…

Governance and Global Affairs, Institute of Security and Global Affairs

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

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.

Polarisation in our society is on the rise. What makes people increasingly radical? How do we protect ourselves from extremist, terrorist or criminal threats, be they physical or in the cyber world? And what role do intelligence services play in this?

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

De vraag is hoe groot de dreiging van het rechts-extremisme is in Nederland? Nikki Sterkenburg spreekt hierover in Trouw en RTL Nieuws.

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,…

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…

The tally now stands at a 19th no-confidence motion in the Rutte IV cabinet, though it is just one year old. All Rutte cabinets combined have faced more no-confidence motions in the past 12 years than the entire parliamentary history before it. The score is 1.5 per month, 87 in total as of 2010 which…

The Reformed Church removed preacher Caspar Coolhaes - Leiden’s first Professor of Theology – from office because of his advocacy of tolerance. PhD candidate Linda Gottschalk sheds new light on this controversial preacher.

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.

Researchers from the Department of Economics and the Institute of Public Administration – Olaf van Vliet and Lars van Doorn – have been awarded a grant of 430,000 euros from Instituut Gak to analyse the flexibilisation of the labour market and its implications for social policy.

‘We want to say something very different from the norm. We are the radicals now.’ Tahir Abbas is lyric about the DRIVE project he will be leading from Leiden University in The Hague. This is a short introduction to the research that will be carried out in the Netherlands, Denmark, Norway and the United…

An important discovery makes it possible to communicate complex information among multiple people without the message being cracked. The communication can also relate to complex information.

From September 2024 onwards, Leiden University’s Europa Institute will teach a new LL.M. programme on the Governance of Migration and Diversity [GMD]. Programme Chair Moritz Jesse says, ‘We need lawyers who are well-informed about the historical, sociological and political background of migration.’

A marathon session took place in Brussels from Sunday 30 June to Monday 1 July to decide who would become the new President of the European Commission. Arco Timmermans, Professor by special appointment Public Affairs at the Institute of Public Administration at Leiden University, appeared as a guest…

As a result of two attacks in Germany and one attack in France within only one week, fears of new terrorist attacks in Europe have reignited. In France a radicalised police agent stabbed and killed four people. In Germany a man from Syria drove his car into a line of cars wounding sixteen people and…