Women in the Middle Ages often wore better quality clothes than men. This is one of the conclusions drawn by Leiden archaeologist Chrystel Brandenburgh, who studied textile remnants from the period from 400 to 1000 A.D. PhD defence 10 May.

Many of us love music, but we don’t understand why exactly that is – or how our individual experiences of music can differ. Rebecca Schaefer will research this in the run-up to the SNAAR Festival in Utrecht. And in a unique way: students in vocational education (mbo) will be the researchers.

What actually goes into the development of a massive open online course, a MOOC? University lecturer Tijmen Pronk developed the course 'Introduction to Comparative Linguistics of Indo-European Languages' independently. He talks about his motivation and experiences.

On Thursday 17 October 2019, the second ILS Lunch Seminar of this academic year took place. Hanneke Bennaars and Prof. Frans Sonneveldt gave two very insightful presentations.

Historian Alanna O’Malley has been appointed to a brand-new Professorial Chair in United Nations Studies in Peace and Justice in The Hague. This extra attention for the UN comes at a significant moment in world history, she says.

From filtering UV light in sun cream to preventing perspiration odour in socks and sterilising fridges and washing machines. The use of nanoparticles in products is increasing. But what is the impact of these miniscule particles on the environment?

Isabel van Vledder and Dieuwertje van der Vlugt, 2 astronomy students from Leiden University, have mapped the entire Milky Way galaxy in dwarf stars for the first time. This result is the most comprehensive model ever for the distribution of these stars. The findings appear in a new paper in Monthly…

A new mathematical model may explain how body cells get their shapes and what makes them move within a tissue. The model provides fundamental knowledge for applications in tissue engineering, amongst other things. Publication in open-access journal iScience.

Dutch municipalities are racing to digitalise, introducing virtual services, fraud-detection algorithms and more. The digital city may not always serve its residents. Professor Jiska Engelbert calls for civil servants who dare to push back.

Symposium on the extraordinary excavations at Middenbeemster

A team of scientists, including Leiden Astronomer Alice Booth, has discovered silicon monosulfide molecules in the dust disk around a young star. Such molecules indicate planet formation. The team made the discovery using the ALMA telescopes. This method provides an alternative when direct observation…

Corinne Dettmeijer-Vermeulen, the well-known legal expert and Leiden University alumna, was for many years the National Rapporteur on Trafficking in Human Beings and Sexual Violence against Children. On 26 November she will deliver the Cleveringa lecture.

The new book, ‘Njord in de Oorlog’ (Njord during the War), describes how the Leiden student rowing club was affected by the Second World War in a detailed series of personal stories. On Monday 16 November, Njord president Rosalie ten Wolde presented the first copy to Rector Magnificus Carel Stolker.

In January, Dr Karsten Lambers was appointed as Professor of Digital and Computational Archaeology at Leiden University's Faculty of Archaeology. With his extensive background in both archaeological research and computational sciences, the installation of Professor Lambers further strengthens this discipline…

Emilie Stumphius and Lennard Kosterman competed in the 10th Business Mediation Competition in Paris. The two Leiden Leadership Programme students were the first team from Leiden University to participate, after winning a wildcard at the Dutch Mediation Competition.

On 1 August, Lars Jeuken started work as Professor of Biophysical Chemistry at the Leiden Institute of Chemistry (LIC). His research is at the intersection of biology and chemistry, but also involves physics and nanotechnology. Jeuken: ‘By linking nanoparticles to proteins and bacteria, we want to convert…

A team of Leiden researchers has won the Ammodo Science Award for innovative humanities research on perceptions of cultural heritage.

Archaeology is also digging with computers. This digital quest to find out how we humans lived in the past is what Karsten Lambers likes doing most. He is the first Professor of Digital and Computational Archaeology in the country. ‘A dream come true.’

An international team of astronomers has discovered a large reservoir of hot gas in the cluster-in-formation around the Spiderweb Galaxy. Based partly on that hot gas, the astronomers predict that the cluster-in-formation will grow into one of the largest objects in the universe. A step closer to discovering…

PhD candidate Dennis Wander searches for the best of both worlds. That is to say: a cancer drug that is effective and also has minimal side effects. To this end, he makes new molecules inspired by two existing medicines. And not without result: ‘We have created a new variant that is very promising.’…

With support of several publishers and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guests per year to consult and research materials from our Special Collections. The Scaliger Institute received applications this year from domestic…

The University's CO2 footprint has once again decreased. This is the conclusion of the 2022 Sustainability Report. The report also concludes that steps have been taken to integrate sustainability into Leiden University education and research.

Molecules are extremely hard to see in visible light, especially without using fluorescence. Leiden physicists have now made their optical technique sensitive enough to image the molecules of their interest in all sizes. Publication in Nanoletters.

Professor Sjoerd Douma has been named the top lecturer on Coursera, the best-known platform for online courses. Students gave him an average score of 9.8 - almost unheard of for a lecturer in International Tax Law.

The supermassive black hole at the center of the Circinus galaxy is being fed with gas by two spiral arms. This is what PhD candidate Wout Goesaert discovered. But only a small percentage disappears into the black hole, the rest is ejected.

Leaf-eating caterpillars greatly enrich their intestinal flora by eating soil. Even effects of plants that previously grew in that soil can be found back in bacteria and fungi in caterpillars. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Leiden University write about this discovery…

The Lucia de Berk case or the suicide of Slobodan Praljak at the International Criminal Tribunal for the former Yugoslavia: certain trials keep popping up in media. In her dissertation, Tessa de Zeeuw examines the cultural appeal of such cases and analyses artistic responses. ‘Artworks sometimes have…

The Faculty Council is the most important co-participatory body of the Faculty of Archaeology. Its members represent staff and students in meetings with the Faculty Board, and they can have a profound impact on the Faculty's policies. We speak with the council's chair, Merlijn Veltman, about the goals…

The CRITTERS exhibition in Naturalis Biodiversity Center lets artists and researchers look for a connection between technology and natural organisms.

Cars, wind turbines, solar panels and smartphones. ‘Critical’ raw materials like platinum or cobalt are used in all the technologies that are essential for the energy and digital transition. But we should be aware of the scarceness of these materials, a new campaign warns.

This year the King’s Speech, read out loud by King Willem-Alexander, was analyzed live again at Leiden University. Scientists, students, and even a hat designer came to discuss the ceremony after the speech.

Four researchers from Leiden University have been awarded NWO Open Competition grants in the Science domain. This is for research into subjects such as immune cells in tumours, antibiotic resistance and magnetic semiconductors.

Rigid materials break more easily than floppy ones. This simple observation allows to predict and control the width of cracks. Theoretical understanding of how materials break is useful in for example the production of cars or screens. Publication in PNAS.

It is difficult to imagine a society other than a hierarchical nation-state. This is in part because we neglect alternative forms from the past, argues archaeologist Lewis Borck in the Journal of Contemporary Archaeology.

A new position has been created at the Faculty of Humanities. On 1 September, Marian Klamer became the first Director of PhD Programmes at the Graduate School. ‘I want to find the balance.’

The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…

eLaw - Center for Law and Digital Technologies at Leiden University, participated in the Horizon Europe BIAS Project international co-creational workshop geared towards discussing fairness of AI applications in the hiring process and ALTAI requirements.

What are the benefits for us of collaboration with Chinese partners? What sparks off Leiden researchers' interest in collaborating with colleagues in China? Leiden University shows in three short films what joint projects are like.

The moving boxes are unpacked, the floors are gleaming, and the workshop rooms look fresh and inviting. On Monday 16 June, the renovated Lorentz Center will be officially reopened by dean Jasper Knoester and rector Hester Bijl. Director Roeland Merks: ‘There’s a new energy running through our centre…

The Nobel Prize in Physics 2016 goes to David Thouless, Michael Kosterlitz and Duncan Haldane for theoretical discoveries in the field of topological materials. Haldane spent part of 2008 in Leiden; he is the 14th Lorentz Professor to win a Nobel Prize.

On Thursday 15 February, the second ILS Lunch Seminar of 2018 took place. Prof. Jean-Pierre van der Rest and Maria Berghuis gave two excellent presentations on their particular research topics.

The author Manon Uphoff from Utrecht will be Leiden University’s new ‘writer in residence’ from autumn 2025. As the writer in residence, Uphoff will contribute to several courses on writing offered by the BA Dutch Language and Culture programme.

Listening to birds and helping science, it is possible. Institute of Biology Leiden (IBL) researchers Karan Odom and Katharina Riebel launched a citizen science project to improve the worldwide documentation of female birdsong.

With support of several publishers and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guests per year to consult and research materials from our Special Collections. The Scaliger Institute received applications this year from domestic…

A bacterium hiding from the immune system and picking up bits of DNA from its environment. The result: gaining new traits, such as better protection against antibiotics. Fortunately, we have not found such a damning scenario yet. However, PhD student Renée Kapteijn did find the first clues, which…

Professor Antje Wessels has received an NWO Open Competition grant to research fragmentary texts.

PhD students Alex Brandsen and Wouter Verschoof-van der Vaart are both doing a project within the university’s Data Science research programme. The are introducing terms like ‘text mining’ and ‘advanced machine learning’ into archaeology. ‘These techniques will make archaeology more efficient and ch…

Sugar excipients, needed to stabilize medicines, can be unsafe for patients due to an impurity discovered recently by Daniel Weinbuch. ‘The biopharmaceutical industry should now consider new excipient quality criteria for safer drug development,’ he says. PhD defence on 13 December.

Oud-studenten gingen op 30 augustus weer de collegezalen in om hun vaste plekje op de banken op te zoeken tijdens Leiden Revisited. Bezoekers konden genieten van inspirerende lezingen, maar ook van een gezellige borrel, buffet, en livemuziek.

The Young Academy Leiden strives to connect young academics with each other and strengthen their position within the University. It goes without saying that mental health is a topic that cannot be ignored here. That is why that was the theme of an again successful Young Faculty Lunch, this time at the…