The underwater world around present-day Indonesia has changed greatly in recent centuries as a result of human activity. University lecturer Johannes Müller has been awarded an NWO XS grant to map the history of the Indonesian ecosystems.

About forty microscopes, various laboratories, and some 15,000 zebrafish: that’s Sylvia le Dévédec's workplace. She is one of the managers of the Leiden Cell Observatory, a unique facility accessible to all researchers.

It is not always easy for students to apply their academic knowledge in practice and get acquainted with the work environment of professional public organisations. Public organisations may struggle in turn to successfully address leadership challenges in their current way of working.

How do we deal with large sources of greenhouse gases? Do schools provide a socially-inclusive environment for all children? And how can we protect Earth’s nature? These questions have two things in common: they are complex global challenges, and data can help answer them. Mitra Baratchi is computer…

Last year around 2,000 international students started a master’s degree at Leiden University. To make this possible, there are various grants that these students can apply for. One such grant is the LExS: the Leiden University Excellence Scholarship Programme. Three LExS students tell us about their…

It is the final stretch for the students of FGGA. Summer is approaching and they are working hard to complete everything before the summer holidays. We asked some of them how they look back at the academic year. ‘Being a mentor during HOP week is something I can recommend to everyone’

Starting university is a big step. There is a lot to arrange. The Well-being Ambassadors offer a helping hand to guide you through the practical aspects of student life.

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 the near future, students of the LDE Bachelor Honours Programme Sustainability will take on real-life sustainability challenges. But first, the course ‘Fundamentals of Sustainability’ provides them with an environmental mode of thinking: “It allows you to focus on what is useful in practice.”

Are you the first in your family to go to university? Or is the Dutch education system unfamiliar because you (or your parents) didn’t grow up in the Netherlands? Going to Leiden University is a great achievement, but it might feel overwhelming too. These tips will help you settle into student life.

Luis is a third-year bachelor’s student Security Studies. During his elective space, he did an internship at the German Ministery of Labour and Social Affairs.

From films, video games and historical novels to Nordic folk bands, Old English from the early Middle Ages is experiencing a revival in the 21st century. Together with international colleagues, university lecturer Thijs Porck (LUCAS) made a book about the 'resurrection' of this dead language.

Dr Alex Geurds was elected as a Fellow for the Society of Antiquaries, a prestigious and old educational charity based in London. Established in 1707, the society aims at the encouragement and advancement of the study and knowledge of the antiquities.

Five students who graduated from the Bachelor Security Studies share their experiences. Where did they end up after graduation? Are they still using the skills they gained during their studies?

An international research team is to search for invisible life in the Galápagos Islands. The diversity of bacteria and other microscopic organisms may not be evident to the naked eye, but it is essential to nature. To the islands' giant daisies, for instance: unique endemic plants that are currently…

From chilling on the beach to a speech by the mayor. HOPweek is a speedy way for hundreds of ‘Leiden’ students who are going to be studying in The Hague to get to know each other. Many of them come from abroad. ‘I actually dare to cycle here.’

Master’s student in Company Law Jelle van der Werff left for Melbourne in February 2025 for a six-month exchange. It turned out to be a great opportunity: ‘Getting to know so many different cultures in one place is really special.’

After nearly two years of retirement, Wil Roebroeks looks back on a career that began in a time of freedom and ended in a field that has undergone profound academic and social change. ‘I have been fortunate to always enjoy my work,’ he says. ‘That is also my advice to younger generations: above all,…

Hydrogen can help to solve the climate problem. At least, if we start producing it in the right, clean way. Leiden researchers mapped out the global environmental impact of hydrogen production and looked ahead to 2050. They published their work in Energy & Environmental Science.

In a new article in the journal Scientific Reports, Leiden archaeologist Wei Chu and colleagues report on recent excavations in Western Romania at the site of Româneşti, one of the most important sites in southeastern Europe associated with the earliest Homo sapiens. The site gives an important glimpse…

For seven years she worked at Noordeinde Palace, as the Private Secretary of Queen Máxima. Since the summer of 2021, Gabriella Sancisi (1973) has been the Dutch Ambassador in Slovakia, where the Embassy in Bratislava’s historic city centre is now her base.

Knowing whether or not a treatment is working just by wearing your watch? Data scientist Ahnjili ZhuParris has identified a lot of opportunities for the use of machine learning in clinical research to monitor test subjects at home.

Alumnus Wandile Madalane tells us how his time in Leiden has made it easier for him to engage with renowned figures and how he does NOT miss the rain.

In the next decades, thousands of wind turbines will be added to the North Sea. Environmental scientist Chen Li identified the most beneficial areas for their construction, focusing on material use, carbon footprint, and environmental impact. His paper was published in Environmental Science & Techno…

Using biomethane to produce ammonia, a crucial chemical in agriculture, could drastically reduce the climate impact of the process. In a study published in One Earth, researcher Robert Istrate shows it’s even possible to make ammonia production net-zero or carbon negative.

Translating texts, rehearsing scenes or practising music. Over the last few weeks, students of the BA Classics programme have been focused on just one thing: their production of the Greek tragedy Hecuba. Almost a third of them are involved in it. Iris de Smalen, who plays Hecuba, and Christoph Pieper,…

In addition to his Film and Literature Studies, Bob van Oosterhout is a bassoonist with several orchestras. He is going to Milan with the student choir and orchestra ‘Collegium Musicum’.

On 17 June, primary school pupils in Leiden will get the chance to explore science in an interactive and engaging way. The exciting new show ‘Wetenschapswonders’ is the initiative of master’s students Boele Visser and Ilse Hordijk, from the Rino Foundation. ‘I’m happy to help build a bridge between…

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

Roderick Geerts, a PhD candidate of the Faculty of Archaeology in Leiden, takes us on a short journey through the rich history of the Red Sea port of Berenike in Egypt.

Dissociation is a common symptom in borderline personality disorder and is associated with an increased risk of suicidality and self-harm. Dialectical behaviour therapist Anne Krause-Utz has written a book for clinicians, researchers and students who want to better understand and recognise the pheno…

Arts and culture

Dialysis patients experience a range of physical and mental symptoms that interact and influence each otherIn her doctoral research, psychologist Judith Tommel wanted to find the optimum approach to help these dialysis patients improve their quality of life. ‘We need to make sure we avoid excluding…

In a fiery Annie Romein-Verschoor lecture, Sylvana Simons opened up about her experiences as a woman in politics. The leader of the BIJ1 party is regularly the subject of belittling comments and threats. Writer Aafke Romeijn, who reflected on the Simons’ lecture, has also been threatened frequently…

A standing ovation. A wave and a smile from the president. A final selfie. Ukrainian President Volodymyr Zelensky addressed students in the Netherlands for the first time on Tuesday morning via a livestream in The Hague. He did so in front of two packed lecture halls at both Leiden University and The…

Few people would associate the name Anton de Kom with Leiden. Yet the Surinamese freedom fighter is the subject of an exhibition at Museum De Lakenhal.

A team of three students affiliated with Leiden University is shedding new light on the lives, diets, health, and mobility of individuals buried at the historic church site in Koudekerke, Zeeland. The project, a collaboration with the Walcherse Archeologische Dienst and funded by the Municipality of…

Aesthetic attraction plays a big role in orangutans’ mate choice, behavioural biologist and PhD candidate Tom Roth has observed. But to discover just how big that role is, more research is needed into the emotions of the great apes.

What do bats do at night when they’re not hunting? Using tiny GPS trackers, Leiden researchers discovered that pond bats spend a substantial portion of the night resting – often outdoors. This surprising insight could change the way we protect them.

Workshop

The Hague has positioned itself as a vibrant student city, and with its growing student population is well on its way to becoming one. But the student housing market is struggling to keep pace.