Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

Hydropower plants need not be disastrous for fishermen and nature. For that, we need to place new dams more strategically, but also modify or even remove some existing ones. Valerio Barbarossa and Rafael Schmitt showed that with a computer model of the Asian Mekong basin.

In brain diseases such as Parkinson's and Alzheimer's, proteins clump together to form fibres. ‘Chaperone proteins’ unravel those fibres, but in the test tube biochemist Anne Wentink saw that this can also cause new problems. She is going to find out what happens inside cells to determine what a drug…

Monica den Boer, who has decades of experience within police and defence and was also active as a Member of Parliament (D66), has been appointed extraordinary professor of Police Studies.

In September 2023 the new minor Sustainability, Climate Change and Food starts. This minor critically examines the complexities of food sustainability through ecological, socio-economic, political, and cultural systems.

When hobby divers revisited a nearly 400-year-old shipwreck off the coast of Texel, they discovered more than 1,000 objects in wooden boxes. Eight years later, postdoc Janet Dickinson used recovered books to compile a profile of the mysterious owner.

Marlien van Mever delved into the analysis of tiny samples, cerebrospinal fluid from transgenic mouse models for example. She validated methods that can now be used to study brain diseases such as migraine and epilepsy. Van Mever will receive her PhD on 14 June.

Thousands of first-year students and hundreds of mentors kicked off the EL CID on Monday morning. This year for the first time, the introduction week of Leiden University and Leiden University of Applied Sciences was also open for students of Regional Training Centre mboRijnland and the Leiden Instrument…

The youngest institute of the Faculty of Science has had a real growth spurt in recent years. It is up to Martina Vijver as the brand-new scientific director to secure that growth and further develop CML. 'This is a challenge that I am really looking forward too,' says Vijver. 'Together with my colleagues…

The left is gaining more and more ground on the political map of Latin America, with the elections in Colombia as the most recent example. But what’s behind this pull to the left? Professor of Modern Latin American History Patricio Silva talks about the current political situation in the region.

The placebo effect was completely new to her when Lingling Weng began the PhD project in Leiden. She is now a postdoc in China. 'It would be great to investigate the underlying mechanisms of placebo and nocebo effects with my current knowledge of EEG and fMRI.' PhD defence on 17 October.

How can we supply the growing world population with sustainable energy? At Laurens College in Rotterdam, Prof. Marc Koper speaks with the students about the crucial role of chemistry in the energy transition. Guest classes like this are a good way for school students to learn about the academic world,…

Since May, Assistant professor BioTherapeutics Lu Su works in our faculty. Although she is still young, she already worked in many different fields and co-operated on two publications in big scientific journals. How did she become so successful and what motivates her to keep researching the possibilities…

Indigenous philosophies have been ignored for too long. This prompted Osiris González Romero to study the wisdom of the Nahua in Mexico. Their philosophy has an important message for the consumption society: see the earth and nature as living beings and not just as resources. PhD defence 22 June.

‘Be yourself. Be as gay, queer, trans as you can and show the world you exist.’ These rousing words from Looi van Kessel marked the start of the third Pride Leiden for the university boat, with the theme: ‘450 years of being yourself’.

On 15 January, the winner of the famed LION Image Award will be announced. Submissions ranged from the famous 3d printed microboat to an eerily abstract graph depicting a Majorana fermion.

Leiden University and four other Dutch universities will appoint 51 PhD candidates to conduct solution-oriented research for and with the African continent.

In a new series we talk to past and present students who were the first in their family to go to university. In this first instalment: novelist and columnist Christiaan Weijts (1976). ‘I always felt as though someone would tap me on my shoulder once they’d discovered my clandestine presence.’

Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.

What do you get when you bring a percussionist and a trumpet player together in a project orchestra? A story full of passion, unique experiences and a healthy dose of enthusiasm. We spoke with Tommy and Jeroen, both staff members at ISGA, about their participation in the Leiden Canal Concert on Sunday…

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Dario Fazzi works at the Institute for History as Assistant Professor. Although he's not not completely new to the Institute, he recently received a permanent appointment. Below he introduces himself!

How do you move 3,000 fragile clay tablets that date back thousands of years? This was the challenge faced by staff from the Netherlands Institute for the Near East (NINO). After years of preparation, the Liagre Böhl collection has been moved on trolleys to its new home.

Do you also love a city where nature can bloom, crawl and flutter freely and exuberantly? And do you fancy a challenge out in the fresh air? If so, grab your mobile and take part in the BioBlitz 'Higher Education is Flourishing' from 22 May.

How does our brain interpret traces of evidence? Can someone who is suffering from brain damage be held accountable for criminal offences? And should it be possible to adjust a criminal’s behaviour with deep brain stimulation? These questions were addressed during the Public Scientific Day Brein & Recht…

Why is water wet? What is ADHD? In De Hoe?Zo! Show, curious 9-and-10-year-olds get answers to their questions. PhD candidates take to the stage to demonstrate just how exciting science can be while enhancing their own communication skills at the same time.

From now on, all information and updates about the closure of the Huygens Building will be shared in this live blog on the Faculty staff website.

In the fight for a liveable planet, we desperately need a fairer distribution of wealth and equal rights for all, argues anthropology professor Marja Spierenburg. ‘That will also generate broad-based support for sustainable development.’

The university's CO2 footprint - a visual representation of Leiden University's environmental impact - is calculated every year. The CO2 footprint for 2020 shows a striking break in the trend in terms of energy use, mobility and waste.

Students gain practical experience while clients receive a solution to their software needs: the student software company LUdev hits two birds with one stone. ‘Through LUdev, students learn what else is involved in software development besides programming.’ Interested? You can now submit new projects…

Bribing a politician to gain influence or making sure friends end up in powerful positions: Brazilian energy companies use these power strategies daily.

Freezers set three degrees higher, a recycling bin for plastic petri dishes or timer switches installed on equipment: a growing number of Leiden University laboratories are taking small – but effective – steps to reduce their environmental impact, via the internationally recognized Laboratory Efficiency…

On January 1st Jasper Knoester started as our new dean. How is he doing? What exactly does he do? And what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

People from the Dutch islands of Bonaire, Saba and Sint Eustatius say that violence (mainly verbal) is fairly common in families. This is according to research by Leiden University, the University of Curaçao and UNICEF Netherlands. The researchers make recommendations for preventing such violence over…

De klimaattransitie is in volle gang: de vervuilende industrie moet plaatsmaken voor duurzame productiemethoden. Werknemers in deze industrie zullen hierdoor nieuwe banen moeten vinden. Dat zal niet iedereen lukken. Heb oog voor die groep, waarschuwt politiek econoom Lars van Doorn.

Museum Boerhaave commemorated the hundredth anniversary of Einstein’s Theory of General Relativity with the exhibition ‘Einstein & Friends’. The exhibition shined light on the famous physicist’s Dutch friends and his love for Leiden. A review featuring seven images can be found below.

On January 7th Minister van Engelshoven of Education, Culture and Science of The Netherlands announced that the project Island(er)s at the Helm: Co-creating sustainable and inclusive solutions for social adaptation to climate challenges in the (Dutch) Caribbean is one of two projects awarded with funding…

For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…

A team of researchers from Young Academy and the Huygens ING/NL Lab has brought a three-century-old fragrance to life based on a recipe by Constantijn Huygens. The fragrance makes the past more tangible and can help people experience history differently.

Since April 2023 the current war in Sudan has brought larger death, destruction, and displacement than any other ongoing armed conflict on earth. And yet, international media coverage of the conflict remains limited.

Learn how silence can benefit your well-being during Work Stress Week from 11 to 15 November. It’s no surprise that we sometimes need a bit of peace and quiet, says Professor of Auditory Culture Marcel Cobussen. ‘Our brain is exposed day and night to auditory stimuli.’

Confetti, stilt walkers and the new Einstein Fountain. On Monday, 2 September, the Gorlaeus Building of the Faculty of Science was festively opened. Together with Constantijn van Oranje, our students cut the ribbon. Dean Jasper Knoester: ‘The building is ready, now it is up to our students and researchers…

Exploring logging's real impact: Insights from Anthropologist Tessa Minter in the Solomon Islands.

Smiling faces, a mass dance and a bit of awkwardness: after two ‘corona editions’ of EL CID, the Leiden introduction week is back with a vengeance this year. A total of 3,412 first-year students from Leiden University and University of Applied Sciences Leiden, accompanied by 486 mentors, started EL…

When assistant professor Jiyan Ilbrink isn't working at the university, she can be found in her vegetable garden. On the plot of land around the corner from her home, she grows the most delicious tomatoes, zucchini, and potatoes.

On March 17, our dear colleague Jan Schmidt passed away after a fruitful and valuable life.

Fat is a very valuable food component, packed with calories, especially important when other resources might be scarce. Our earliest ancestors in Africa already cracked open bones to extract the fatty marrow from bone cavities. But now a new study published in Science Advances demonstrates that our…

Professor Ton Liefaard has worked to improve the position of children since his academic career began.

In the spring of 2024 the Faculty of Archaeology welcomed a new postdoc. Dita Auzina, originally from Latvia, works as a researcher in the project of Alex Geurds. ‘I have joined the project as a landscape archaeologist, but I also run my own fieldwork in Nicaragua.’