After every attack, terrorism researchers are often asked the same question: who did it? Jeanine de Roy van Zuijdewijn, a researcher at Leiden University, doesn’t always have a ready-made answer.

Ten Leiden researchers will receive funding of up to 280,000 euros from the Dutch Research Council (NWO). They will use this grant to develop their research ideas in the coming three years.

The Dutch Research Council (NWO) has awarded Vidi grants to Leiden researchers.

Covid year 2021 might have felt somewhat less strange than the year before, but the virus still left its mark on University life and our students and staff. Fortunately there was also room for research, visiting dignitaries and in-person classes. And our social media accounts weren’t only about covid…

Warning colours ensure that predators remember that certain prey are poisonous. But now it appears that the colours of poisonous Panamanian frogs are also influenced by fastidious females: partner choice can also lead to colour change in these frogs, as Leiden researcher Martine Maan has reported in…

Take a walk through any city, and you are likely to come across a brightly coloured mural. Although these paintings often seem to serve solely as a backdrop for Instagram snapshots, art history professor Minna Valjakka says there are rich traditions and intricate histories that uncover more critical…

Brandon Valeriano (Cato Institute) and Aleydis Nissen (Leiden University) publish an article on the soft power of K-pop in The Diplomat.

In the EU Law Live podcast episode ‘Banks under stress and EU law in the latest case-law of the Court of Justice of the EU’, Barbora Budinská talks about a series of judgments concerning the ABLV Bank Latvia and its subsidiary, ABLV Luxembourg.

mooc Global Order Machtsverhoudingen International

Samineh Bagheri is the first PhD candidate to defend her thesis fully remotely.

'It gave our team a big boost to hear that our work was valuable,' says medical chemist Elmer Maurits about the moment they won the Venture Challenge. With their company Iprotics, they want to develop a drug that can better treat patients with autoimmune diseases and blood cancers. 25,000 euros of prize…

The one-day symposium ‘War in Europe: the impact of Russian aggression in Ukraine two years on’ on 23 February 2024

Due to an exception in the law, domestic workers employed by private persons cannot automatially benefit from social security schemes. Home help Carol Kollmann did not agree with this and took her case to court.

The Seasons of Interdisciplinarity are an initiative by the Young Academy Leiden that started in 2021.

Leiden University now offers almost 20 Massive Online Open Courses (MOOCs). The enthusiasm displayed by participants makes it rewarding to develop and teach such courses, say MOOC lecturers Marlies Reinders and Edwin Bakker. But that is not all, ‘You bring together a global community.’

The ability to collect and interpret huge quantities of data has become indispensable to society and academia. Leiden University is a knowledge and expertise centre for data science that places the emphasis on interdisciplinary collaboration and innovation.

The Dutch Royal Couple received 70 scientists at the yearly gala for the Diplomatic Corps at the Royal Palace in Amsterdam on 14 June 2023.

It's the middle of summer and the lecture halls are full. Students from all parts of the world have come to Leiden and The Hague for a summer school, on subjects varying from linguistics to international criminal law and from physics to biopharmaceutical sciences. Lecturers and students talk about what…

Staff exchanges are an extremely enjoyable way to discover other education systems, gain international and intercultural experience, develop new professional skills and network with foreign colleagues.

More than half of the Indonesian population lives in cities. What does this mean for public health? How sustainable are these megacities? This is the subject of the ‘Urban Transitions’ Summer Academy on West Java. This summer course is also the kick-off for a renewed interdisciplinary partnership…

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

Young researchers met this month for the fifth Science Communication Summer School. ‘This is the first time some participants get to meet other researchers who also enjoy science communication. It’s great to see’, says Julia Cramer, one of the coordinators.

The project has been done under the supervision of Dr. Diego Garlaschelli and Dr. Frank Takes. The title of the presentation is: ''Complex Network Analysis of Darknet Black Market Forum Structure.

Cultural Anthropologist Jasmijn Rana argues in the opinion piece ''Black', 'white', or 'of colour' is not about purity' in the Leiden University Weekly Mare to use uneasiness about being reduced to skin colour and gender to fight racism.

The faculty has been investigating hundreds of ancient stone tombs in Jordan’s Black Desert.

In the next few days several compositions by Aart Strootman (guitarist, instrument builder, composer, teacher and ACPA PhD) will premiere at Festival Classique and Festival Gaudeamus.

Spirits play a important role in post-colonial and minority literature as a means of processing black pages from history, according to literary scientist Chia-Sui Lee. PhD defence 11 January.

A research team from Radboud University and Leiden University, led by senior researchers Prof. Masja van Meeteren (RU/UL), Dr Paul Mutsaers (RU) and Prof. Maartje van der Woude (UL), will examine what national and international research has really found about ethnic profiling by the police.

Assistant professor Stephanie Noach has won the Dissertation Prize of the Praemium Erasmianum Foundation. She is receiving this prestigious prize for her research on darkness in contemporary art from Latin America and the Caribbean.

A safe place to discuss burning social issues such as racism with each other. The student workspace Space to Talk About Race and the Afro Student Association both meet this need and also organise many other activities. Three board members explain why this is necessary.

On this page you can find information about previous CCLS events.

Cornelia Pabst is a PhD candidate at Leiden Observatory, whose research is based around primary data taken by instruments onboard SOFIA, an airplane-based observatory on which she has flown multiple times. Pabst explains how this airplane has impacted her research career and gives her views on the ever-present…

Is our universe built up out of warm or cold dark matter? The standard model assumes cold dark matter particles, but astronomer Sylvia Ploeckinger is now testing the possibility of a warm counterpart: sterile neutrino’s. For this project, she received an NWO Physics/F grant, a special grant for women…

For over a year now, the James Webb Telescope has been sending stunning images that exceed astronomers’ expectations. The photos are fascinating to see, but what exactly are we looking at? Assistant professor Melissa McClure explains.

Leiden University and REALaw organise a Conference and Summer Course on Europeanisation of national administrative law. This will be held from 2-4 September 2019 in the Old Observatory in Leiden. All speakers are confirmed and the programme is now published.

In the context of the summer school "Medieval Religon" prof. Christopher M. Bellitto (Kean University) will give a keynote lecture on June 26th: "Politics and Religion in the Middle Ages and Today: Thoughts of an American Medievalist". This lecture is also open to those interested who do not participate…

Almost 100 billion tons of CO₂ could be pulled out of the atmosphere by the end of the century. That is, if high-income countries switch to a plant-based diet. The double carbon profit of returning farmland to its natural state would equal about 14 years’ worth of agricultural emissions, researchers…

The Greater Angkor Region in contemporary Cambodia was dramatically more urbanized in the 13th century than previously thought, and home to 700.000 to 900.000 people. These discoveries were made by a research team led by Sarah Klassen. Their findings are published in Science Advances.

Astronomers led by Leiden astronomer Sebastiaan Haffert have directly imaged two planets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. While over a dozen exoplanets have been directly imaged, this is only the second multi-planet system to be p…

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…

Chemical substances and nanomaterials are processed on a massive scale in diverse products, while their risks have not been properly assessed. Time and again synthesised substances have been shown to pollute the environment more than lab tests predicted. This is the warning given by Professor of Ecotoxicology…

New ALMA observations show there is ordinary table salt in a not-so-ordinary location: 1,500 light-years from Earth in the disk surrounding a massive young star. Though salts have been found in the atmospheres of old, dying stars, this is the first time they have been seen around young stars in stellar…

Historical figures such as Columbus have returned to the centre of public debate. Much remains to be discovered about his legacy and current impact on our society. A new study shows the ecological footprint that the arrival of Europeans left in the Caribbean islands.

A pop-up exhibition ‘All the Einsteins’ will open at Rijsmuseum Boerhaave on 29 May 2019. This is the first time that the museum will present its entire collection of handwritten letters and documents by Einstein. The exhibition marks, among others, the publication of the first photo of a black hole…

Friso Selten recently started a PhD position that is part of the SAILS program. This PhD project is a collaboration between FGGA, LIACS, and eLaw, and is supervised by Bram Klievink (FGGA), Joost Broekens (LIACS), and Francien Deschene (eLaw). In the project Friso will investigate the influence of artificial…

An international congress, lectures and a new book series and magazine. It’s a hot topic at the moment that attracts broad public interest. Researchers, from historians to legal experts, are bringing together their expertise in the Leiden Slavery Studies Association.

Besides being a linguist, George Saad is also a photography fanatic. He shares his most beautiful and telling pictures, shot during his field research in Eastern Indonesia.

Buying chocolates as a sign of love, getting the best deals on Black Friday and putting on a spooky costume for Halloween. In recent years, these holidays and traditions have taken off in the Netherlands, even though they originated on the other side of the ocean. Why are we so excited about American…

What moral concerns do people have when they encounter the financial sector in their everyday life? Erik Bähre's ERC consolidator project 'Moralising Misfortune: A comparative anthropology of commercial insurance’ aims to find out. In collaboration with Brechtje Boeke, five short documentaries from…