On Friday morning, 8 June, Thijs Bosker, Associate Professor at Leiden University College, was interviewed by NPO Radio 1 on plastic pollution in Antartctica: ''Anually, an additional 4 - 12 billion kilos of plastic ends up in our ocean''.

Registering your hypothesis and analysis plan online before starting your study – why should researchers bother? Henk van Steenbergen, a researcher in cognitive psychology, decided to give it a try. 'I used it as an exercise in open science.'

In the future top Dutch speed skaters may skate even faster thanks to a skate full of electronics. This ‘measuring skate’ gives top skaters and coaches information about the skater’s technique and motion. It can measure the dynamics at play between the foot, the ice and the skate.

Leiden University and the Leiden Bio Science Park can make a significant contribution to the earning capacity of the Netherlands. This is the finding of the National Investment Agenda presented today.

A sustainable building that is both sports and examination centre. In September, a design team including architect Atelier PRO will begin to develop the plans for the new University Sports Centre (USC). Construction will begin in 2021, and the building is expected to be completed before September 2022.…

For many years, he was active in various management positions at the LION and even after his retirement he is still very involved. Professor Jan Aarts leads the Leiden hub of the Quantum Delta NL growth fund and is now temporarily responsible for national educational activities. In this way, he is helping…

In 2018, the Institute of Environmental Sciences (CML), born out of activism, exists for forty years. The institute celebrated this on 28 June in the Stadsgehoorzaal in Leiden. In the morning, proud directors and researchers looked back and forth. After this several experts discussed the current environmental…

What’s really happening in the space between the cells in your body? With the Collagen Canvas project, students from Leiden University invite you to explore this question by blending science with art. This interactive artwork immerses you in the dynamics of the extracellular matrix—the invisible structure…

Recently, Engin Yüksel gave a lecture on Russian military concepts from 1853 to the present day and his observations on the Russo-Ukrainian war at the Faculty of Humanities, premised on his recently completed doctoral research.

On June 22, the week of data literacy started. The week was organized by PublicNL in close collaboration with LCDS. The essence was: How do we deal with data in the future? What major changes did we see in the past five years and what expectations may we expect for the future? Are there any pointers…

Biologists Michelle Spierings and Ryan Bogaars are 2 of the 4 winners of the Leiden heat for the international FameLab competition in talking science during a public presentation.

Work has begun on an accommodation complex for international PhD candidates and postdocs at the Leiden Bio Science Park.

Dr. Jelena Belic and Dr. Tom Theuns have each been awarded XS grants from the NWO to develop innovative lines of research. Dr. Belic’s project examines distinctive ways in which the deployment of digital technologies interferes with freedom, while Dr. Theuns explores the ideological tensions between…

Graduation Ceremony

Nearly all university buildings at the Leiden Bio Science Park will be open and operating again as of Wednesday 24 May. Last night a team worked hard to restore the power to the buildings in phases and this was successful. Students and staff can work and study there again.

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

Jurist Gineke Wiggers wants to predict the expected impact of legal articles. Carel Stolker, Rector of the University and, like Wiggers, a legal specialist, is enthusiastic about the research. ‘A big data project like this will help us establish the effect of our work on society.’

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.

‘Rudy van Vliet is always willing to go that extra mile to help us,’ is what students say about him. The lecturer in the Computer Science bachelor’s programme not only teaches his regular courses but also offers additional classes to prepare students for programming competitions. His dedication to students…

The Netherlands Organisation for Scientific Research has awarded a grant of 750,000 euros to the 'Visualising the Unknown in 17th-century Science and Society' project. Researchers will reconstruct how seventeenth-century scientists recorded and shared their groundbreaking microscopic discoveries. We…

Algorithms solve problems. But which algorithm is best suited to which problem? During his doctoral research, Diederick Vermetten developed methods to figure this out. And that is important for the entire field.

Two researchers from the Institute of Political Science were recently awarded prizes. Claire Vergerio received the Francesco Guicciardini Prize for her book on the historical origins of the primacy of the state in international law ('best book in the historical international relations category'). In…

A fair distribution of goods and services is the most important factor in justifying political power. This is the conclusion of Honorata Mazepus in her PhD dissertation 'What makes authorities legitimate in the eyes of citizens?' PhD defence September.

Knowledge and culture subproject 1:

Knowledge and culture subproject 2:

Mirjam van Reisen favours big data built up from local inputs in developing countries and suitable for local use. The new Professor of Computing for Society at Leiden's Faculty of Science connects data science with development sociology. Inaugural lecture 10 March.

On Tuesday, November 18, 2025, Ambassador Bert Theuerman (Austrian Ambassador to The Netherlands) hosted a Coffeehouse Discussion exploring the position and impact of women in science and arts at his residence in The Hague.

When we talk about the Kingdom of the Netherlands, it is not just about the Netherlands. On the contrary: our Kingdom consists of no less than four countries, three of which are Caribbean islands. This structure is complex, to say the least. Although all countries are officially equivalent, in practice…

In the future, computers will be able to base their decisions on intuition. Professor Jaap van den Herik, director of the Leiden Centre of Data Science, posed this statement today in his Valedictory Address at Tilburg University.

By spreading fake news via TV spots and Twitter with the use of Social Bots, Pascal professor Heike Trautmann is investigating the characteristics of fake news. She is calling on Leiden researchers to cooperate in the project.

In The Hague, the Leiden Centre of Data Science (LCDS) in close collaboration with the Centre for Professional Learning (CPL) is developing a Legal Technologies programme. They do so in cooperation with three faculties of Leiden University, namely the Faculty of Governance and Global Affairs (FGGA),…

On 29 January 2019, Robbert J. van Eijk will defend his Ph.D thesis, in which he investigates the online advertisements that seem to follow you.

Festival

How do we navigate the continuously developing landscape in research integrity, ethics, and open science? Anna van 't Veer and Eiko Fried discuss the underlying principles and values of science with all psychology units in their Responsible Scholarship workshop.

Philosophy lecturer Victor Gijsbers has been awarded the 2017 Faculty Education Award. The Faculty Education Award is given each year to the Faculty’s most inspiring lecturer. After attending one of Gijsbers’s lectures, the jury said it was impressed by his energy and dry humour.

In FameLab contestants explain their research to the public in a three-minute presentation – without using PowerPoint or other presentation tools. The Leiden heats of this international communications competition will be held on 7 March. Anyone is welcome to come and watch!

A new collaborative monograph of democratic theory, The Sciences of the Democracies, was released by UCL Press on August 7. The book, in the style of a democratic manifesto, is written by a large number of co-authors in a bold attempt to expand and deepen how democracy is studied and understood. Among…

Both play and politics have the potential to create worlds in which new rules apply, meanings are created, and possibilities emerge for collaboration, strategy and creative solutions. In this sense, play and politics have always been very much alike. But what happens to this kinship in a post-digital…

The Klokhuis dedicates a special episode to Leiden alumnus and famous scientist Christiaan Huygens. Part of the episode was recorded at the Leiden Observatory. Leiden researchers also helped shape the episode, which debuts on Tuesday 2 November.

Who authored the best theses in Leiden University's Political Science BSc programmes?

Biologists today have to be able to work with big data. Data analysis skills should be taught from the start of the degree programme, or - even better - in secondary school. This is the message of Vera van Noort, new Professor of Computational Biology. Inaugural lecture 22 January.

How many species of plants, animals, fungi and moss live in the gardens surrounding the Oude UB at Rapenburg 70? On Tuesday May 20th, the Citizen Science Lab led an investigation in the front gardens and back courtyard of the Old UB at Rapenburg 70, together with 15 colleagues working in that buildi…