You should start working now, and the positive results will only be seen long after your term has expired. That is just about the worst thing you can say to politicians and policymakers. Yet that is exactly the message of two recent reports on sustainable resource use from the Centre for Environmental…

Around 1,300 Leideners found 2,265 species during the Expeditie Stadsnutuur urban biodiversity inventory. ‘It’s been a huge success’, says scientific coordinator Frederic Lens.

Eleven researchers of the Faculty of Science are on the 2021 Highly Cited Researchers list of Clarivate Analytics. Only 0.1 per cent of researchers are included in this list, literally making them one in a thousand.

From 1 October, two new Directors of Education will start at the Institute of Biology Leiden (IBL). Dennis Claessen as the new director for the master's programme of Biology and Marcel Schaaf as director for the Biology bachelor's programme. Claessen and Schaaf have been appointed for a period of four…

The university campus at the Leiden Bio Science Park is flourishing. A new book tells the stories behind this remarkable metamorphosis.

Researchers from Leiden University, together with SEO Amsterdam Economics, have been chosen to evaluate the Dutch Telecommunications Sector (Undesirable Control) Act and the Investments, Mergers and Acquisitions (Security Screening) Act.

On the initiative of Leiden Law School’s Art Committee, the festive opening of the photo exhibition of the Leiden Amateur Photographic Society (LAFV) took place on Friday 20 May 2022 in the C corridor of the Kamerlingh Onnes Building.

Our own Dr. Martin Berger has been accepted as a member of the Young Academy Leiden! He is thrilled with his appointment. ‘I am honored to be accepted as a member of the Young Academy Leiden and am looking forward to working together with other scholars from across the University.’

Transferring poo from healthy donors to the intestines of chronically ill people has beneficial effects on these recipients’ gut bacteria, also in the longer term. This is the conclusion of research by the Leiden University Medical Center (LUMC) and the Netherlands Donor Feces Bank (NDFB).

Researchers Dr. Natascha van der Zwan and Dr. Philipp Golka from the Institute for Public Administration have started an evaluation of Dutch pension funds at the request of the Monitoringcommissie Code Pensioenfondsen. Focus of the evaluation is the role of internal supervision in ensuring good governance…

Leiden University will deepen its cooperation with knowledge institutions in Africa. During a trip to Ghana, a delegation spoke with several African knowledge institutions about intensifying their collaboration.

At the start of the year a lot of journals publish lists of their most cited papers of the previous year. Three papers published by Leiden archaeologists were ranked in the top 10 of the Journal of Archaeological Science: reports.

Would you like to share your expertise with a wide audience, and in a very convenient way? The Vraag het Leiden (Ask Leiden) video platform is looking for academics who can answer questions sent in by the general public, both young and old, by recording short videos.

Herman Spaink knows of many substances that may help combat tuberculosis. Lab space to study them safely is very limited in Leiden. A brand-new lab at Universitas Gadjah Mada in Indonesia will soon provide a solution. About time, says Spaink, ‘The disease is on the rise and is becoming less sensitive…

Michael Kowalski has been appointed as part-time Professor by special appointment of Applied Ethics in Intelligence and Security at the Institute of Security and Global Affairs (ISGA) at Leiden University.

Even though the COVID-crisis continuously evolves and is marked by new realities and uncertainties, we can carefully begin to take stock looking back on the first phases of Dutch crisis management. What can we learn reflecting on the crisis strategies of this extraordinary and transboundary crisis that…

In 2022, Leiden will be the European City of Science. University lecturer Jaap de Jong has created special assignments for the journalism master's students to celebrate this: they will go into the city to visualise knowledge from the city.

We all do it sometimes: watch your favourite Netflix series, YouTuber or comfort series while you are eating. But we don't always consider the possible consequences this could have. Floor van Meer talks about this and more during an interview with BBC.

In Leiden University's video series on Leiden and The Hague as student cities, students interview each other at their favorite spots. In the fifth video of this series, archaeology student Julia spoke with Anthropology student Daria in Trianon, on Leiden's cinemas.

Leiden ecotoxicologist Martina Vijver helped shake a European policy proposal in a single weekend. Not with a new experiment, but with years of research on pesticides – and an urgent letter that reached Brussels.

Once a year, former employee and avid runner Dennis Hoencamp returns to his old workplace. That’s when he competes in the Leiden Science Run. As an event coordinator, he once devised the relay race as an anniversary activity. It grew into an annual event for the entire University and the Bio Science…

Scholars from Libya and Leiden have been cooperating on research since 2012. On 25-26 October 2022, a select group of high-level participants will gather in Leiden to discuss the research on national reconciliation and access to justice, and to explore implications for policy and law.

Dennis Janssen has been appointed as Director of Operations for the Leiden Observatory. He succeeds Dominique de Vet who temporarily held the position. Janssen currently works as a program manager Leiden Research Support within Administration and Central Services and will start his new role on 18 No…

Leiden University Libraries (UBL) in partnership with Elsevier hosted a series of online seminars on the challenges involved in achieving reproducibility in research. The seminars aimed to identify best practices that can help to overcome central challenges around reproducibility, and to convey several…

External PhD Candidate Liselore Tissen was interviewed by Leiden Global about her work, in which she uses 3D printing. Recently she made a copy of a decorative human skill this way.

Ernst Kuipers, Minister of Health, Welfare and Sport, announced on 13 February that he plans to remove children’s heart surgery from the Centre for Congenital Heart Defects Amsterdam - Leiden (CAHAL). He wants to concentrate this highly specialised care for children with congenital heart defects in…

The antibiotic EVG7, developed in Leiden, has proven capable of fighting the dangerous gut bacterium C. difficile with only a minimal dose. What’s more, the bacterium is far less likely to return, a major issue with existing antibiotics. The research was published in Nature Communications.

Only the fittest cyclists stand a chance of taking yellow in the brutal Tour de France. Team Jumbo-Visma is working with data scientists from Leiden. They have analysed the stages and performance of Jumbo-Visma’s riders in previous Grand Tours. And they are researching how to determine the fitness level…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

On Tuesday 7 September 2021, the new Faculty year was opened with the Leiden Law Op 1 Talkshow. Various guests shared their thoughts and expectations for the new academic year. Lotte Kremers and Bastiaan Rijpkema presented the show.

Neat strips of grass and perfectly manicured flowerbeds may look green and inviting, but they’re often not the best for nature. That’s why Leiden University is prioritising a comprehensive biodiversity plan over conventional greenery at the Leiden Bio Science Park (LBSP).

Do you practice public engagement? The International Astronomical Union (IAU) has just released a unique set of open-source materials designed to be used in public engagement training workshops.

Smiling faces, sweltering heat and a record-breaking donation – that was the Leiden Science Run 2025. On Saturday 21 June, the Leiden Bio Science Park turned bright orange as enthusiastic runners completed 4.5 kilometres to support research for vulnerable children.

Last week’s sunny Lowlands festival was not just an occasion for partying and dancing. Visitors were also given a glimpse – as test volunteers – into scientific research. How do you conduct research on fear and silent communication at a festival?

The family of the famous diplomat, sinologist and writer Robert van Gulik has donated his personal archive and part of his collection to Leiden University Libraries (UBL). The collection and archive provide insight into the life and work of Robert van Gulik, who became known to the general public for…

Memorandum of Understanding Signed Between the Child Friendly Justice European Network and Leiden Law School - Child Law Department

Sustainable biotechnology, new insights into genome evolution and combining forces in mathematics. The NWO has awarded grants to these three innovative Leiden research projects in the ENW-M Open Competition.

The Leiden University team representing the International Institute of Air and Space Law (IIASL) won the World Finals of the Manfred Lachs Space Law Moot Court Competition that took place in Paris on 20 September 2022.

What opportunities does uncertainty offer with regard to innovative behaviour of professionals and what role does leadership play in this?

A true shower of awards for students from the Faculty of Science during the annual KHMW Young Talent Awards ceremony. On Monday, 25 November, no less than nine first-year students received a prize for the best academic results in their first year. In addition, there were graduation prizes for master’s…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

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…

Helping industry to spot dangerous and climate-harming gas leaks faster, cheaper, and more reliably than today’s tools: that's what Leiden University and BigCircle Ventures set out do in a new spin-off company.

A delegation from Xi’an Jiaotong University visited Leiden University on 25–26 March, celebrating ten years of cooperation in education and research, and exploring new opportunities for future collaboration.

How can we sustain dialogue on a deeply divisive issue within our university community? On 16 February 2026, Leiden University hosted "Between the River and the Sea: An Evening with Yousef Sweid", marking the launch of the second season of the student-produced Radio Palestine/Israel podcast.

Stefaan Van den Bogaert, Vice Dean of Leiden Law School was delighted to announce on 29 March 2023 that the faculty has awarded research funding to all applicants for starter grants.

Education, Organisation

Labour law professors have shaped research and education in Leiden since 1936. From the rise of trade unions to the AI revolution, the field has constantly evolved. Major changes are on the horizon again in 2026. 'Labour law will always be important.'

Rob Jetten presented his very first cabinet on Monday 23 February. Three members have ties with Leiden University.