Hungarian Prime Minister Viktor Orbán addressed the Conservative Political Action Conference (CPAC) in Texas last week. University lecturer Andrew Gawthorpe explains in an interview with ABC Radio what the embrace of 'Orbánism' means for the American right, and democracy more broadly.

Recycling of post consumer plastic waste is problematic in that the environmental benefits are questionable and the costs are significant. It would be better to separately collect the most useful parts through the expansion of the deposit system.

Annelien Bouland, PhD candidate at the Van Vollenhoven Institute for Law, Governance and Society, was interviewed by VPRO Bureau Buitenland (NPO Radio 1) about the Senegalese TV Series 'Mistress of a married man' (‘Maîtresse d’un homme marié’).

Sanneke Kuipers and Dyonne Niehof wrote a blog about 'The Resilient City'. They describe the resilience of a city such as New Orleans after Hurricane Katrina and also provide insights of social capital and the resilience of The Hague.

Arco Timmermans, Professor by special appointment of Public Affairs, discusses the current protests in the Netherlands and whether this is a new phenomenon

On 30 July, Jorrit Rijpma spoke on Dutch BNR news radio programme Spitsuur about the call from ANVR, the Dutch travel sector organisation, for European travel guidelines to be provided.

Employers are calling on rules to be relaxed on labour migrants from outside the EU as a way of attracting more labour migrants to solve staff shortages. Professor of Economics Olaf van Vliet explains on Dutch radio new programme BNR Nieuwsradio that there are various options to reduce staff shortag…

In a one-hour interview on Dutch radio programme Sleutelstad, Anne-Laura van Harmelen talks about her research into the role friendships in adolescents' well-being, the resilience paradox and the role of social, hormonal and genetic factors in stress-levels and resilience.

British novelist Sarah Perry picked Anna Scott as one of her favorite musicians for the program Private Passions on BBC Radio 3.

On 7 February 2021, Christa Tobler appeared on the BBC Wales radio programme 'Sunday Supplement' (a political and current affairs programme), entitled 'Covid, homelessness and votes for women'. The 50th anniversary of Swiss women's suffrage at the federal level, is commemorated on 7 February 2021.

On the 15th of March, the radio program “The World of BNR Nieuwsradio” was live broadcasted from the Spanish Steps at the Faculty of Governance and Global Affairs in The Hague. Jaap de Hoop Scheffer, associated with the Institute of Security and Global Affairs, was one of the radio show’s guests. Following…

Simulation project EAGLE has won the 2022 Group Achievement Award of the Royal Astronomical Society. EAGLE is a large collection of simulations about the formation of galaxies. The largest simulation contains as many as 6.8 billion particles and took months to calculate on the world's fastest superc…

The directorate of the Netherlands Research School for Astronomy (NOVA) has two new members. Ronald Stark (currently at NWO) will be the new Executive Director of NOVA from 1 September. Amina Helmi (Professor of Dynamics, structure and formation of the Milky Way at the University of Groningen) will…

PhD defence

On Wednesday 11 December 2019, Marieke Liem, Associate Professor, appeared as a guest on the NPO Radio 1 podcast. The central topic of the podcast was risk perception among the Dutch population.

There is a lot of unrest in the Western Sahel at the moment as a result of growing Jihadism and terrorist attacks. Stability and security in the region are falling apart making room for growing radicalisation. But what do you need to look out for in order to be able to recognise radicalisation and what…

The Old Observatory has a rich history. On this page you will find a short version of the history that took place in the observatory.

The West is considering military intervention in Libya to stop the rise of IS. The question is: what does IS want in Libya and what can and will the West do about it?

This thesis is a (biased) journey through very different topics in astrophysics: quasars and new populations of active galactic nuclei, gravitational waves from merging black holes, and protoplanetary discs around young stars.

Over the past 40 days people in Bulgaria been demonstrating against the deep-rooted corruption in the country. The anger of the protesters is directed predominantly at the government of Prime Minister Borisov. But not all arrows are aimed at their own leaders, some are also pointing towards Brussels.…

At the beginning of the year, the Dutch intelligence services, together with their American, German and Swiss colleagues, revealed that, for years, confidential communications of more than 100 countries had been intercepted. The project named 'Operation Rubicon' is a collaboration between Germany and…

A man died in Assen while being detained by bystanders. The man allegedly touched a young girl inappropriately and the girl’s father is believed to have been one of the bystanders. Five men have been arrested by the police and later released. As a result, wild rumours have started circulating. How does…

In november 2023 is Anne Fleur van Veenstra, wetenschappelijk directeur van TNO Vector, benoemd tot bijzonder hoogleraar ‘Governance van data en algoritmen voor stedelijk beleid’.

Tijdens de Dies Natalis worden elk jaar de Leidse Universitaire Scriptieprijzen uitgereikt. Elke faculteit selecteert hiervoor haar beste scriptie. De beste scriptie van FGGA is geschreven door Leah Beekhuizen met de titel: ‘De lusten of lasten van radicale collega-belangenbehartigers’

Last week, a large number of farmers came to The Hague to ask attention for the problems they are faced with. They certainly received a lot of attention but does this mean their problems are actually being addressed?

An international team of astronomers has published a map of the sky showing over 25,000 supermassive black holes. The map, to be published in the journal Astronomy & Astrophysics, is the most detailed celestial map in the field of so-called low radio frequencies. The astronomers, including Leiden astronomers,…

Switzerland and the EU are conducting negotiations on a renewed institutional framework for a number of already existing and future market access agreements.

This thesis mainly extends the theory of positive operators on Riesz spaces to a setting of pre-Riesz spaces.

Vandaag de dag liggen statistische methodes aan de grondslag van beslissingen in allerlei facetten van het leven, van de gezondheidszorg en agricultuur tot de financiële sector en marketing.

The RED team, a group of independent experts, has advised the Dutch government to close down all (secondary) schools. It is a difficult balance the government has to find between limiting the number of contagions and the social consequences of closing down the schools. As a result of the first lockdown…

The European Commission sees increased labour migration as a solution to the growing personnel shortages, but the Dutch Labour Inspectorate argues that this is not a tenable business model. Professor of Economics Olaf van Vliet discusses the advantages and disadvantages of labour migration for the economy…

The crisis in Iran seems to have settled and both countries are claiming victory. The Americans say that they taught Iran a lesson, but Iran projects the contradictory. Now, who is right? On Thursday 9th January, Bert Koenders commented on this on BNR News Radio.

Jeanine de Roy van Zuijdewijn, researcher and lecturer at ISGA, was a guest on NPO Radio 1 where she discussed the attacks carried out in 2011 by Anders Breivik.

On 8 October, Armin Cuyvers was interviewed by RTLZ News and BNR News Radio on the shocking ruling by the Polish Constitutional Tribunal of 7 October 2021 (both in Dutch).

Economic Anthropologist Erik Bähre talks on the Dutch News Radio Channel BNR about the effects of the Russia-Ukraine grain agreement for African countries.

Not only the United States but also the Netherlands are faced with 'systemic problems' to do with racism and discrimination, according to Dutch Prime Minister Rutte during a press conference held on 3 June. The Prime Minister responded to the events taking place in the United States after the death…

On 1 March Armin Cuvyers was interviewed on BNR national radio on Brexit, the Draft Withdrawal Agreement of the Commission and the key Brexit speech by Theresa May planned for 2 March.

A permanent exhibition on the place of humans in the cosmos. This is something Franx wants to use his Spinoza Prize for. ‘So much progress has been made that we are still trying to define the questions. In finding the answers we are constantly coming up against surprises.’

Simulations of galaxies help researchers understand astronomical observations better. The EAGLE simulation, a large project in which Leiden astronomers play a leading role, shows the evolution of the Universe, from just after the Big Bang to the present day.

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

Our research regularly receives attention in the (Dutch) popular media. Here is an overview.

Large telescopes can look so deep into the Universe that they can also look back billions of years in time. From 2018, the successor of the Hubble Space Telescope, the James Webb Space Telescope, will be able to see the period just after the Big Bang, when the first stars and galaxies formed. Astronomers…

Scientists are asking your help to find the origin of hundreds of thousands of galaxies that have been discovered by the largest radio telescope ever built: LOFAR. Where do these mysterious objects, which extend for thousands of light-years, come from? A new citizen science project called LOFAR Radio…

Leer meer over de Master Education and Child Studies tijdens de Online Master's Open Dagen van de Universiteit Leiden.

In dit onderzoek worden orde isomorfismen en orde antimorfisme bestudeerd in het algemene kader van partieel geordende vector ruimten.

Who inspired you to see a subject in a whole new light? The Teacher of the Year Award celebrates those who not only share knowledge but also spark curiosity, connect with students, and bring research to life. Meet the finalists for 2025!

Promotor: Prof. dr. A.G.G.M. Tielens