Studying surfaces of solid materials: it may not seem relevant to energy consumption, but it is. Marcel Rost studies how platinum electrodes wear out. Those electrodes are a crucial component in the fuel cells of hydrogen-powered cars. ‘We need to make the switch from fossil fuel energy to hydrogen.…

Psychedelic drugs like magic mushrooms and LSD are embraced by some and seen as lethal by others. Cognitive psychologist Michiel van Elk delved into the world of psychedelic drugs and wrote a surprisingly sober book about them. ‘Without first-hand experience my story wouldn’t be complete.’

The staff of the Leiden University Medical Center are doing all they can to help as many corona patients as possible. They are also making regular media appearances to discuss the disease. Below are a few examples.

My name is Pepijn Reeser, I’m 34 years old and I graduated in 2008 as a historian. I’ve been working in the museum world for about ten years, mainly as a freelancer. My most important project is Het Taalmuseum (the Language Museum); I’ve been involved in that since 2016. Leiden University is one of…

How do you maintain diplomatic relations in a world of rising tensions? This was the theme of a guest lecture by Minister Sigrid Kaag at Campus The Hague. ‘Policy proposals won’t go through if they don’t foster women’s development.’

What if particles don’t slow down in a crowd, but move faster? Physicists from Leiden worked together and discovered a new state of matter, where particles pass on energy through collisions and create more movement when packed closely together.

Young people are more likely to find long texts unappealing to read, particularly with all the digital distractions. To improve young people’s reading skills, Elise Swart and Hannah De Mulder are starting an innovative study to make reading fun again.

For the following years, Dr Aitor Burguet-Coca will be a returning face at the Faculty of Archaeology. He will join Dr Amanda Henry’s team with his expertise on prehistoric fire use and the methodologies that studying ancient hearths requires.

Researchers at Leiden University have created a unique model that mimics how disease develops after a dengue infection. This 'dengue-on-a-chip' model helps them study the virus more effectively. The timing is crucial, as climate change is causing dengue to spread worldwide.

Patients with incurable cancer want their oncologist to be clear but to show empathy too. They find hard and vague communication harmful. These are the results of a study by psychologists from Leiden that has been published in the American journal Cancer.

Leiden University Libraries holds an internationally unique collection of unofficial poetry from China. Produced outside the System over the last fifty years or so, this poetry is hugely influential yet hard to find beyond the informal networks through which it travels. To address this paradox, the…

Forty archaeology students are holding a shovel somewhat awkwardly in the fields at Oss. This is their first day of fieldwork and they are going to use muscles they didn’t even know they had.

Thomas Moerland studied medicine and mathematics in Leiden and has a lifelong fascination with the origins and workings of intelligence. He brought all that together in his popular science book Van IQ naar AI (From IQ to AI).

In May 2022 Lennart Kruijer succesfully defended his PhD, which he wrote as a member of the VICI Project ‘Innovating Objects’, led by prof. Miguel John Versluys. So succesfully, in fact, that he was awarded the Cum Laude honors. Just a short time later he was awarded a grant and a fellowship to further…

How can we safeguard children’s rights in conflict zones? The winners of the 2025 Children’s Rights Moot Court Competition, team 19 from O.P. Jindal Global University in India, show unique potential to bring about positive change in this area.

This year, an NWO PhD in the Humanities grant went to Mink van IJzendoorn, enabling him to investigate the disappearance of amphorae. ‘We take means of packaging and shipment for granted, but they are deeply ingrained in our daily lives; they are crucial.’

Level Up is a non-profit project led by a multi-disciplinary team of doctoral researchers in the framework of the Europaeum Network was founded by the University of Oxford University. Sophie Veriter explains the importance of Level Up, the development of the ‘Level Up Toolkit’, and why this project…

Making the most vibration-free, cryogenic scanning tunneling microscope in the world. A bold mission, but one that PhD candidate Irene Battisti successfully executed together with the Fine Mechanical Department. The new microscope might shed light on how unconventional superconductivity works. PhD Defence…

Artificial Intelligence (AI) is a technology that often puts women and minority groups at a disadvantage because it tends to be developed by straight white men. What if that changed and women were the driving force behind AI? This is the thought experiment at the heart of Maaike Harbers’ Annie Romein-Verschoor…

Astronomers and surgeons from Leiden are collaborating with industry to develop an optical instrument that delivers faster, more accurate imaging of tumour tissue and abnormal blood flow during surgery.

We have been working from home for over 9 weeks. How are the staff members of the Institute for History doing? Andrew Gawthorpe shares his experience below.

Helping the University to become more sustainable. This is the task of seven students and three members of staff at the Leiden University Green Office that officially opens its doors on 27 September. Three members talk about why and how they want to make their colleagues greener.

A dissertation covered in hot pink faux fur, antique prints of PhD ceremonies, a pot encrusted with sealing wax: the Hora est! anniversary exhibition at Oude UB takes you to the ritual yet idiosyncratic world of PhD ceremonies.

Researchers from the Institute for Science in Society (Radboud University Nijmegen) and CWTS (Leiden University) organized a workshop on the use of IT Tools in academic publishing on 5-6 June 2018.

Een orang-oetan lacht niet gauw hard om een video waarin een soortgenoot dat ook doet. Een peuter doet het meer dan een volwassene, een Japanner weer iets minder. Chris Riddell leerde uit zijn vele experimenten ook dat geduld loont. Hij promoveert 16 september.

How do you make lobbying and rhetoric both challenging and understandable for high school students? Professor Jaap de Jong found the answer in climate activist Greta Thunberg. Together with his colleague Arco Timmermans, he developed a digital guest lecture on how to present a convincing story.

Researchers from the Leiden University Medical Center (LUMC) have successfully used stem cell gene therapy to treat a baby with the severe congenital immune disorder SCID. An important milestone: it is the first time stem cell gene therapy of Dutch origin has been administered to a patient, and also…

‘Over the last few years we have focused much more on our environmental policy and have got better at telling the world what we do,’ says Jan van der Boon, Director of Administration at the Leiden University Administration and Central Services Department. This is how he explains Leiden’s impressive…

Even though it is generally known that Autism and ADHD are more common in men, and depression or anxiety disorders are more common among women, it is still not well understood if, how and when sex differences impact neurodiversity and mental health. To better understand this complex issue, 25 international…

Professor Johan Rooryck will be examining cognition and core knowledge systems and how possession is expressed in different languages. Rooryck and fellow researchers have been awarded two NWO grants totalling 2.75 million euro to carry out two research programmes: 'Knowledge and Culture' and 'Lend me…

In the weekend of 24 February, master’s student and skater Lisa van der Geest won two skating marathons in Luleå, Sweden: the 100 km and the 42 km in the KPN Grand Prix on natural ice. Lisa has already won many times this year.

The ninth issue of the Journal of the LUCAS Graduate Conference has been published. This time the theme is ‘Reinventing Boundaries in Times of Crisis.’

Getting young people excited about history is quite possible without books. Researchers from Leiden travelled to Morocco to work with schoolchildren on reconstructing cultural heritage in the popular video game Minecraft. The result: one virtual 14th-century city gate – and 20 teens with a greater appreciation…

Each year on the university’s birthday, children at primary schools in Leiden and The Hague have a lesson from a professor – about children’s rights and robots in surgery, for example. The children get to do activities. And ask questions: ‘How do you become a professor?’

By a stroke of luck, a team led by Dutch PhD student Martijn Oei has discovered a radio galaxy of at least 16 million lightyears long. The pair of plasma plumes is the largest structure made by a galaxy known thus far. The finding disproves some long-kept hypotheses about the growth of radio galaxie…

Students held a bake sale to raise money and gain attention for the earthquake in Turkey and Syria.

De Faculteit Archeologie bestaat dit jaar 25 jaar. Ter ere van dit jubileum opende de faculteit op 1 maart zijn deuren voor het brede publiek.

A jar, filled with water, that functions as an aquarium for fishes while plants or flowers grow on top. Urban Crops, a young start-up company, creates small eco-systems in jars by using aquaponic systems. The 'Ecojar' is a modern decoration in living-rooms and office spaces, but also purifies the air…

The Netherlands is an open country and should remain so. This is what the rectores magnifici of the Dutch universities write in an opinion piece. Because academic training that does not provide enough of an international perspective lacks quality and relevance to the job market and society.

How do you keep students’ attention when you have to compete with digital distractions like Facebook? What skills do you need in today’s rapidly changing world? Teachers attended a congress on innovative teaching on 23 November.

Did Francisco de Valdés indeed spare Leiden because his beloved Magdalena Moons had family living here? Historian Raymond Fagel gave a lecture on 24 September on the siege of Leiden, looking at the many myths that still exist.

Quantum technology, statistics and a survey with memes: definitely not your everyday research. Julia Cramer (Leiden Institute of Physics) and Sanne Willems (Institute of Psychology) investigate how people perceive quantum.

As every academic year, the leadership team of the Young Academy Leiden is changing. As of September 2022, dr. Sarah Giest (Associate Professor, Institute of Public Administration), former Vice-Chair, will be the Chair of YAL. And dr. ir. Julia Cramer (Assistant Professor, Science Communication and…

Professor Jojanneke van der Toorn has held the chair in LGBT workplace inclusion for five years. To celebrate, organised an international online conference on workplace inclusion, in cooperation with Workplace Pride that was hosted by the university on 20 and 21 May.

Public Defence by Jaap Brouwer and activities of prof. Marcel Cobussen PhD, Dick de Graaf, Nizar Rohana, Brigitte Kovacs, Lilo Nein, Danne Ojeda, Hans Kalliwoda, Frank Blokland, and Thalia Hoffman

Leiden patriot Pieter Vreede fought for greater popular influence. Historian Dirk Alkemade reveals how this pioneer used radical means to shape Dutch democracy.

Vivian van der Linde completed her masters Crisis & Security Management in the summer of 2020 by writing a thesis on Dieselgate. Freshly graduated, she felt she wanted to do more with her research. But how do you go about that, having just finished studying? Together with her thesis supervisor Wouter Jong…

Many of us are working from home at the moment, but our children are at home too. While this can be fun, parents sometimes need a bit of peace and quiet. Leiden computer scientist Felienne Hermans has developed Hedy, a programming language that teaches children how to program. An educational way to…

After four years of hard work, the time has finally come: your thesis is finished. But who of your family and friends will ever read it? Biologist Lizah van der Aart decided to make a magazine for layman. 'It was precisely the explanation of the difficult, fundamental parts that gave me good tools for…

In bankruptcies, proceeds are often too low to pay the trustees and fraud often occurs. This lack of resources means that fraudsters can get off scot-free, according to research by Leiden University and SEO Economic Research.