The documentary Einstein’s Light by director Nickolas Barris shows in a dazzling manner what scientific breakthroughs resulted from the special friendship between Albert Einstein and the Leiden physicist Hendrik Antoon Lorentz. The documentary premiered at the Leiden International Film Festival on 2…

We asked a lot of everyone last year. The Personnel Monitor showed that the workload was high in 2022 and Covid took its toll. I therefore think everyone deserves some downtime. Time away from the daily grind.

It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…

Researchers at Leiden University Medical Center (LUMC) and Radboud university medical center have been given the green light to deliberately infect volunteers with malaria in order to test a highly promising vaccine on them.

Dutch researchers have developed a new tool to label DNA for studying chromosomes in live cells. The tool is non-invasive and can be applied in culture but also in living organisms, such as zebrafish embryos. The team published their findings in the journal Nucleic Acids Research.

Novel language learning activates different neural processes than was previously thought. A Leiden research team has discovered parallel but separate contributions from the hippocampus and Broca's area, the learning centre in the left hemisphere. The right hemisphere of the brain also seems to play…

Asexual procreation in female wasps leads to an accumulation of genetic mutations, and the shrivelling of their sex organ. Leiden biologist Ken Kraaijeveld published this discovery in Evolution. His research is one of the first experimental studies into the consequences of asexual procreation.

The Sustainability Monitor 2023 shows that Leiden University is taking its sustainability efforts seriously.

On 9 March 2023, the Council for the Judiciary organized a conference on innovations within the judiciary, which took place in the building of the Dutch Supreme Court. The central conference theme was judicial innovation and what we can learn from various forms of socially effective justice (‘maatschappelijk…

If you know a crime is about to occur, should you be able to prevent it before it has even happened? This was one of the questions that was posed in light of predictive policing as a form of mass surveillance during the debate in the elective Governance of Crime and Social Disorder class of the Crisis…

Sixth-grade students with lower mathematical ability perform better on complex arithmetic problems if they write down their calculations. This discovery was made by psychologist Marije Fagginger Auer, a specialist in Methodology and Statistics. Her outlook is optimistic: ‘After training, these students…

Erik Kwakkel, researcher at the Faculty of Humanities, has found an extraordinary manuscript in the University Library’s extensive collection of medieval books. The book in question dates back to the first half of the eleventh century and is made entirely out of waste left over from the production of…

How do democracies develop? The Institute for History is devoting a three-day conference to this question.

They have known each other since they were small but Rianne and Tom first fell in love when working together at the university. That love culminated in a fairytale wedding amid all the revelry last 3 October.

The European University for Well-Being is organising a hackathon from 14 to 21 September to generate concrete proposals for this virtual university and to create a EUniWell identity. Leiden students and staff are welcome to take part.

Around 15% of all Dutch people say they can't distinguish between left and right. People taking their driving test regularly take wrong turns and arguments flare up because that all-important turn is missed on the way to the camp site. Researchers in Leiden and Utrecht are trying to find out what's…

On 2 December, the Municipality of Leiden will apologise for the role previous administrations played in colonialism and slavery. A further study will be carried out.

Since the end of the nineteenth century Arabic book designers have influenced the social and cultural situation in the Middle East with their work. Huda Smitshuijzen Abi-Farès has written the first global overview of this neglected field of science. PhD defence 10 January.

After 41 years, Meindert Danhof, Professor of Pharmacology, is leaving the Leiden Academic Centre for Drug Research on 31 March. A symposium in his honour, prior to his farewell lecture, will show what has been achieved in this period. Danhof takes a look back on his career.

When do we say violence was used in an incident? The answer may seem obvious at first. But interim results from a study by Jolien van Breen show that Dutch people are labelling events in increasingly broad contexts as violent.

Researchers from the Leiden Institute of Chemistry show proof of principle that live-cell structural changes and metabolic processes can be followed in real time with NMR spectroscopy. They performed their study on photosynthetic green algae that are metabolically flexible and can sustain energy generation…

Young transgender people are able to decide together with their parents on a reversible intervention with puberty blockers. These are the results of a study by LUMC Curium and Amsterdam UMC of 74 young people undergoing treatment. Ninety percent of the young people studied proved able to make an informed…

To mark the university’s 450th anniversary, the Leiden Discoveries science route has been updated and was relaunched on the Night of Discoveries. New signs in town and a revamped website tell Leiden residents and visitors the stories of the city’s spectacular discoveries.

From indigenous space to colonial setting. Archaeological investigations at El Chorro de Maita in Cuba wins prestigious prize.

The doctrine of German philosopher Friedrich Nietzsche is complex, contradictory and open to a range of different interpretations. As a result, his legacy has been adopted by both violent fascists and liberal pluralists. However, as James Pearson shows, the true Nietzsche lies somewhere in between these…

PhD research recently completed by pharmacologist Margreke Brill shows that morbidly obese patients should be given a different dosage of the drugs Cefazolin and Midazolam. This could also apply to other drugs such as anti-cancer drugs as well as antibiotics and Margreke Brill is advocating a change…

For a month long, the Senate Chamber of Leiden University was reserved for portraits of women. The work of art showing a hundred unique portraits of female professors has now been put into storage, but the board of the University is taking measures to promote the image of women in science.

Koen Bastiaans and his colleagues discovered a new quantum liquid unlike anything ever seen. They did it by using a technique that can be compared to listening to the sound of raindrops falling on a roof. Publication in Science 29 October.

In an innovative study, Radboudumc and LUMC jointly tested a candidate vaccine based on a genetically weakened malaria parasite. The results of this clinical trial, published in Science Translational Medicine, show that the vaccine is safe and elicits a defense response against a malaria infection.

The Mesoamerican research group 'Time in Intercultural Context: the indigenous calendars of Mexico and Guatemala' funded by the ERC and directed by prof. dr. Maarten Jansen, met up in Mexico from the 13th until the 23rd of February for a field seminar in the states of Tlaxcala and Hidalgo.

The international regime governing displacement shows a number of gaps, most notably with regard to (internally) displaced people who are not covered by the definition of refugee of the Refugee Convention. These protection gaps translate into solution gaps for displaced people.

The proportion of female professors at Dutch universities is increasing, but at a modest rate. At 34.2%, Leiden University is in the top three. These are the results of the Women Professors Monitor for 2025.

Receiving a gift is nice, but giving a present also makes you happy. Development psychologist Mara van der Meulen former member of the Leiden Consortium on Individual Development (L-CID) answered four questions about giving gifts.

The lecture series “Humanity in the Automated State” continued on 19 March 2026 at Leiden Law School with Dr. Mengchen Dong from the Center for Humans and Machines at the Max Planck Institute for Human Development.

Researchers have used AI to reconstruct the rules of a board game carved into a stone found in the Dutch city of Heerlen. The team concludes that this type of game was played several centuries earlier than previously assumed.

In 2010, the remnants of a 16th century indigenous village were discovered in St. Vincent, on the construction terrain of the new International Argyle Airport.

A tried and tested medication for treating ADHD works differently than expected in the brains of healthy individuals during rest: rather than stimulating brain activity, it suppresses it.

The Leiden Academic Centre for Drug Research (LACDR) received no less than three awards during the Figon Dutch Medicine Days. Bas Goulooze won the PhD Prize for best PhD candidate, Natalia Ortiz Zacarías and Huub Sijben both received a poster prize. ‘Scientists must be able to communicate their research…

In cities like Leeds, Seoul and Malmö, a museum park is a place for unintentional creativity, unsolicited interventions and unorganised sport. Dutch cities could learn a lot from this. In De Architect, Sander Hölsgens describes how skaters are making public spaces more inclusive.

Last Monday April 18, Bram Koster (professor at the Institute of Biology Leiden (IBL), professor at the Leiden University Medical Center (LUMC)) and Ariane Briegel (professor at the IBL) gave a presentation to the mayor of Leiden, Henri Lenferink. The presentation took place at NeCEN, the open access…

On 22 December 2018, Dr. Bart Custers, Associate Professor and Head of Research at eLaw, Center for Law and Digital technologies, presented research results of the e-SIDES project at the Artificial Intelligence and Cloud Computing Conference (AICCC 2018) in Tokyo, Japan. His presentation dealt with…

On 26 and 27 May 2017, Richard Jiang, PhD candidate at the Europa Institute, participated as a speaker in the ninth annual meeting of the Society for Environmental Law and Economics at Worcester College, University of Oxford.

Dubbel asiel aanvragen mag niet. Toch draagt Nederland slechts één op de vijf asielzoekers over aan andere landen tijdens een lopende asielprocedure. Dat blijkt uit cijfers van de Immigratie- en Naturalisatiedienst (IND). Universitair docent Mark Klaassen sprak hierover met EenVandaag.

Timo Schmidt and Florian Volz, both International Studies students, have travelled the route many refugees took to reach Europe by bike in the summer of 2016. Through crowdfunding, they want to finance their documentary about this journey. With three days to go, they are at 90% of their target amount…

Daniel Leech-Wilkinson introduces a series of podcasts based on his book Classical Performance Norms and How to Escape Them.

Do you consider applying for the Media Technology MSc programme? This is your chance to meet our staff and students, and learn how we connect creativity, science and personal curiosity!

On Thursday 24 of June, GTGC’s Assistant Professor Valentina Carraro, presented her work on regime complexity during the Conference of the Academic Council on the United Nations System (ACUNS).

The British people have voted in favour of Brexit: the United Kingdom will leave the European Union. How will this vote be transformed into a legal and political reality?

For the next "What’s Next?" talk series we have invited two former Media Technology students - Jeroen Jillissen (Google) and Marcin Pakulnicki (ING Bank) to talk about their journeys after Media Technology, and considering their positions, to reflect on what it means to be developing technologies that…