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.

The effects of many treatments are determined, to a significant degree, by factors other than the medicine or treatment itself. For example, placebo effects can be equal to the effect size of for example antidepressants or painkillers. Contributing factors are the trust placed in the doctor, the expectation…

Han De Jong gave an overview of (the run-up to) the current economic crisis and discussed which steps could be taken to resolve this crisis.

The research programme Formal Theoretical and Experimental Linguistics brings together LUCL researchers who focus mainly on formal theoretical and experimental linguistics.

How do inclusion and exclusion affect people?

With many kilometres of beaches, hundreds of sights, excellent restaurants and lively cafés, the Hague really is a cool city to live in. However, arranging accommodation can demand a lot of time and effort for Dutch and international students. For this reason, finding a place to stay is one of the first…

The Political Science degree programme at the University of Leiden has a strong academic reputation. You will be taught in an international classroom by experts in their field.

If you are thinking of moving to Leiden to follow your master's, you’ll be pleased to learn that Leiden offers many types of student accommodation. These vary from small student houses to large communal houses, and from student flats to one-room studios. But, if necessary, it’s also possible to find…

Corruption, integrity (or a lack thereof…) and public values are near omnipresent elements in public administration and politics of all times. Cases of corrupt public officials and politicians continuously emerge. Strangely enough, however, it often remains unknown what actually occurred, how something…

Studies on the Disappearance of the Amphora Phenomenon

The specialisation in European Union Studies offers students an opportunity to study the processes of European integration from a multi-disciplinary perspective and combines academic excellence with practical insights into the processes of policymaking in Europe.

Regenerative medicine is a new way of treatment that helps impaired cells, tissues, and organs work well again. We do this by repairing, replacing, or restoring cells, tissues, and organs after damage from illness or injury. This includes treating long-term diseases such as diabetes, kidney diseases,…

Our Advanced Master Air and Space Law (LL.M.) combines public air law, private air law and space law from a European and an international perspective.

Diversity and inclusion are core values of Leiden University. Leiden University is committed to being an inclusive community which enables all students and staff to feel valued and respected and to develop their full potential. Here we state the vision of the Mathematical Institute on diversity, equity…

We offer a unique master’s programme because it places equal importance on environmental sustainability and governance perspectives. All core courses are co-developed and co-taught by staff from two different faculties. Combined with the extensive skillset and the explicit focus on inter- and transdisciplinarity,…

BSc Security Studies is a bachelor’s programme with a compulsory matching module.

The transition from single cells to multicellular organisms was a key step in evolution. Researchers from Leiden and Amsterdam developed a mathematical model that explains how this transition may have come about. They suspect cooperating cells may correct each other’s mistakes. Publication in eLife…

It has happened more and more frequently in recent weeks: large groups of Moldovans who come to the Netherlands hoping to get asylum here. This means that Moldovans are currently the largest group of asylum seekers in the Netherlands after Syrians. It is unclear what caused this sudden influx.

In a recent TEDx Flanders event “Statistical Errors in Court”, Statistical Scientist Richard Gill speaks about the case of Lucia de Berk, a nurse found guilty of several murders based largely on statistics.

Announcement for employees of Campus The Hague:

The Koninklijke Hollandsche Maatschappij der Wetenschappen invited Wim van Anrooij to join as a member. That does not happen to everyone!

What happens to the different waste streams?

Antwoord op veelgestelde vragen over onderzoek met proefdieren bij de Universiteit Leiden. FAQ

Negatieve ambtelijke adviezen lieten eerder zien dat het uitroepen van een asielcrisis op grond van het vreemdelingennoodrecht vanuit democratisch en rechtsstatelijk oogpunt niet aanvaardbaar is. Wim Voermans, hoogleraar staatsrecht, licht in Nieuwsuur toe welke hordes bij zowel bij de inzet van het…

As most of you are well aware of, Climate Change has been an ongoing and pressing topic, and therefore deserves our close attention. What and how exactly happens during Climate Change? What are the effects of it? AND possibly most importantly, what can WE as students do about it?

Misinformation spreads easily and fast. It gets presented as news, whereas actual news gets dismissed as fake. Conflicting streams of information allows all sides to cherry-pick whatever is most comfortable, boosting degrees of confidence and confusing the deliberation of both politicians and voters.…

This section contains information on:

Knowledge and culture subproject 2:

As a graduate of the Faculty of Humanities, there are unlimited possibilities. Do you want to know more about the sectors and jobs Humanities' graduates end up? Click on the name of the alumna/alumnus to read their story!

Physicists at Virginia Tech in the US investigated how a soap bubble freezes to become a beautiful ice dome. This only happens when the surrounding air is cold enough, otherwise the dome collapses. LION-researcher Daniela Kraft comments. 'This had never been researched before. I think it is beautiful…

On 2 July, Armin Cuyvers was interviewed on the morning news show of BNR News Radio on the ongoing fight for the EU top jobs: why is it so hard to choose a new president for the European Commission, what is happening behind the scenes, and what are the chances of Frans Timmermans?

Recent figures from Statistics Netherlands show that the total number of homicides has decreased in 2020. But the number of homicides among young people increased. Many have interpreted this to mean that homicide among teenagers in increasing. Marieke Liem, Professor of Social Resilience and Security,…

What happens if a Member State decides to withdraw from the European Union? The “Brexit Charts” aim to provide information on the withdrawal procedure under Art. 50 TEU, on the legal consequences of leaving the EU and on the future relationship of the withdrawing state with the European Union.

It rarely happens: halting a decision by walking out of a meeting. ‘But there’s nothing wrong with it from a constitutional law perspective,’ says Geerten Boogaard, Professor by Special Appointment of Local Government, in ‘Leidsch Dagblad’.

Physicists, including Dorothea Samtleben from Leiden University, are building a giant underwater telescope to unravel the origin of neutrinos and to solve the mystery surrounding dark matter. The first detector has now been installed. Once it is finished, the telescope will be three cubic kilometres…

Each year, poppies disperse seeds that grow into a new generation of flowers. Sometimes, some of the seeds postpone their germination for a few years, for example when they’re covered by a layer of sand. Only when the sand disappears, do they start to sprout. Margriet Oomen did mathematical research…

During the ‘Hour of Remembrance’ on 4 May, the University community remembers its students and staff who were killed in the Second World War. It also looks at freedom and oppression today. Three questions for Sara Polak, chair of the Hour of Remembrance committee.

How does ICT affect society? Mirjam van Reisen, professor Computing for Society at the Leiden Centre of Data Science, is intrigued by this question. We speak with her about innovation, changes in health care, and mobile human trafficking. ‘Innovation has many benefits, but it can also be very disrup…

Fluctuations in individual plant communities contribute to the stability of an ecosystem as a whole, a study published in Ecology Letters shows. Nadia Soudzilovskaia and colleagues for the first time used data from plant communities across five continents to prove this hypothesis.

Materials are either gas, liquid or solid, based on how their molecules respond to temperature and pressure. But what if the building blocks are self-spinning particles instead of ordinary molecules? Theoretical physicists found out what determines the phase of those artificial materials. Publication…

Lev Manovich, world-renowned innovator in digital humanities and theorist of digital culture and media art, is the first speaker in the Media Technology MSc program's "Hello World!" lecture series.

Though tuberculosis can be cured today, new resistant strains of the bacteria are becoming a growing problem in the medical world. Biologist Annemarie Meijer and her colleagues are studying resistance to this disease. Their research is already yielding several interesting clues that could help the development…

Now the election results are in, how should we interpret them? Time to call Associate Professor in Political Science Tom Louwerse.

Genes are active sometimes, and other times they remain dormant for a while. Leiden physicist John van Noort receives an NWO ECHO grant to find out how this happens.

Amerindian settlement patterns and early colonial cartography in Northern Hispaniola

If a society is to be secure, sustainable and resilient, conflicting interests must be reconciled. Researchers at Leiden University study the behaviour of individuals, groups and states in relation to this issue, and use their knowledge to promote equality within and between communities.

How do insurance products transform intimate and personal relations? What are the consequences of the classifications that insurance companies use and how do these affect solidarity, morality and inequality?