Two teams of astronomers, including one from Leiden University, have discovered oxygen in the most distant known galaxy, JADES-GS-z14-0. This groundbreaking discovery shows that galaxies could form much faster in the early universe than was previously thought.

To what extent does exoplanet Proxima b resemble our Earth? And is there some form of life present? Astronomers hope to find answers to these questions with the new European Extremely Large Telescope (ELT). An NWO research grant of €18 million will allow a Dutch consortium to continue building instruments…

On 25 September, lights throughout Leiden will be turned off for the Seeing Stars event. What makes the urban night so special? We asked university lecturer Sara Brandellero, who researches cities, night and migration.

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…

During Leiden City of Science 2022, Janet Grijzenhout and Hannah De Mulder will put multilingualism in the spotlight by organising multilingual storytelling afternoons. They hope to show parents that raising children multilingually is achievable as well as beneficial.

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…

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.

Leiden University College The Hague received the 'Top rated Programme' seal from the Keuzegids Universiteiten 2023 (Dutch University Guide). It is the tenth consecutive time the Liberal Arts & Sciences programme focusing on Global Challenges is awarded the honorary seal.

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.

Following a special donation, the Stichting Pro Juventute foundation is facilitating a new special chair in Educational Theory and Law. Through the chair, Pro Juventute hopes to realise optimum child protection from a coherent legal and educational perspective.

A group of over a hundred pro-Palestine demonstrators gathered in the Wijnhaven building on Campus The Hague at around 13.00 hrs on Tuesday 6 May. They chanted slogans and hung up banners. The majority of the demonstrators left the building after a short while, but a small number refused to leave.

Leiden University addresses the UN on children’s rights

A new government, conflicts around the world and obviously a lot of science: these are the five stories about Leiden University that you enjoyed reading in 2024.

Egyptologist Marleen De Meyer has been appointed the new Director of the Netherlands-Flemish Institute in Cairo (NVIC). Dr De Meyer has worked for the institute, which promotes Egyptian, Dutch and Flemish collaboration in the field of education and research, since 2016.

For conducting experiments involving animals, you need a project license and a valid research plan. On this page, you will read what this entails and how to submit these documents. You will also find other relevant information regarding conducting research involving animals here.

We know we should do it, and we often want to, but… Why is it so hard to live a healthier life? Professor of Behavioural Interventions in Population Health Marieke Adriaanse explains.

De Faculteit Archeologie bestaat dit jaar 25 jaar. Ter ere van dit jubileum opende de faculteit op 1 maart zijn deuren voor het brede publiek.

Many saw the UN Summit of the Future as the moment of truth for the United Nations and its plans for the world. Joris Larik, Assistant Professor of Comparative, EU and International Law, explains the results.

Many will add them to their shopping list without a second thought, but what if you don't have enough money to buy period products each month? The university has recently started providing packs of affordable sanitary pads and tampons in the SchoolSupply vending machines. ‘It's just like providing toilet…

Chris Suijker, since 1 July the new director of Real Estate, likes healthy and sustainable university buildings where you ‘get the feeling you’re right at the heart of society’. Her aim is to achieve the same effect with even more buildings.

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.

There’s a change of staff at ACPA. The institute is bidding farewell to Professor Janneke Wesseling and welcomes Anke Haarmann, who is not only a new professor, but will also take over Wesseling's responsibilities as Director of PhD Arts. In this interview we look back and ahead with them.

Damien van Puyvelde has received funding (over 47.000 euro) from a new Research Council pilot for his study 'Open-source research and the war in Ukraine: intelligence for the people by the people?' We asked the researcher five questions about this project and the opportunities this creates for him.

Social media are playing a key role in calling for resistance to the corona measures. Online, agreements are made about where and when people will gather to protest. The authorities are not always fully aware of what is happening and cannot just infiltrate, whereas civilians can often easily participate…

Give Nikki IJzerman a football and she’s happy. The midfielder was named Player of the Year by ADO Den Haag last season, as well as obtaining her master’s degree in Journalism and New Media.

How do you study the growth of microorganisms, the spread of epidemic diseases or the healing of wounds, without actually performing experiments? Daoyi Wang, PhD candidate at the Mathematical Institute, worked on a specific mathematical model that can describe the growth of microorganisms and many other…

Study information

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.’

As a supervisor, you are responsible for the supervision of your PhD candidate. Read here about your duties as supervisor and the procedures relating to this, as well as which forms you will need.

Julia van Alem had never held a camera before, but she and her classmates were appointed as the City Photographer. ‘This project helped me learn how to create my own work better.’

Young people are more likely to find long texts unappealing to read, particularly with all the digital distractions. To improve young people’s reading skills, Elise Swart and Hannah De Mulder are starting an innovative study to make reading fun again.

Cotton is the most widely used natural fibre for clothes. But how polluting are our jeans and shirts actually? Environmental scientist Laura Scherer coordinated an international research project on the impacts of cotton. ‘The purchases of consumers in Europe can contribute to water scarcity in China…

Ben Kuipers is benoemd tot hoogleraar Publiek Leiderschap bij FGGA. De leerstoel Publiek Leiderschap (0,2 fte voor een periode van vier jaar) wordt extern gefinancierd vanuit het samenwerkingsverband VPL (Verder met Publiek Leiderschap) en is ingebed in het Leiden Leadership Centre (LLC)

Dear Sir or Madam? Many colleagues think that sounds out of date. That is why the hundreds of thousands of automated messages sent by university help desks every year will now include a gender-neutral salutation. This change is an extensive but important ICT job, says product owner Julian van der Kr…

More papers, more grants, more students: constant growth is still the gold standard at universities. Neuroscientists Anne Urai and Claire Kelly argue that this mentality obstructs us in resolving such complex societal problems as the climate crisis. Their alternative? The university as a doughnut.

How can staff help create a healthy and inclusive learning environment? How do today’s students differ from previous generations? And what does this mean for how we guide and support them? These questions were the focus of the ‘Today’s Students’ symposium on 25 March.

Ionica Smeets is planning to give the prize money that she won with the Iris Medal, a prize for excellent science communication, to student projects.

Greater transparency in science. Broader career paths. Less work pressure. A dynamic conversation at the Faculty of Social and Behavioural Sciences (FSW) focused on these goals.

Education, ICT

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…

Aram Segaar, Corporate Information Security Officer in the Information Management Department, works every day with his team to create and maintain a secure working environment at Leiden University. October is ‘Cybersecurity Month’. Aram explains how the university stays safe and the conscious (and unconscious)…

Collaboration is worthwhile. A joint LUMC and Leiden Law School project has received €142,500 from the Dutch Research Council (NWO). This grant will advance research into the law and ethics of regenerative medicine.

Dr. Eun-Ju Kim (LIAS/ATC) has been awarded a Comenius Teaching Fellowship 2024 from NWO. The title of her project is "Leveling the reading and learning environment: language support for students of Korean and Japanese with reading difficulties (LD/dyslexia)".

If you'll soon be getting a COVID-19 vaccine, you might just get the Johnson & Johnson (Janssen) one. This vaccine was developed for the most part in Leiden – and this is no coincidence. Watch the animation below about the development of one of the vaccines in the fight against COVID-19.

Media outlets Investico, de Groene Amsterdammer and Trouw reported on the wide-scale collection by the Dutch police of personal data of demonstrators and their family members. Bart Schermer, Professor of Privacy and Cybercrime, commented on the issue.

Oostenrijk wil online bedreigingen en haat harder aanpakken. Aanleiding is de dood van huisarts Lisa-Maria Kellermayr. Zij maakte eind juli een einde aan haar leven, nadat ze maandenlang werd bedreigd door mensen die tegen coronamaatregelen en vaccinaties zijn.

Europe is working full steam towards a digital identity for every EU citizen. And although it might be really useful to be able to hire a car everywhere in the EU with no hassles, Bart Custers, Professor of Law and Data Science at eLaw, the Center for Law and Digital Technologies, sees many loose ends.…

For a few years now, Leiden’s Hortus botanicus has been mounting a campaign to cherish wild plants in the city – for the biodiversity and beauty of this spontaneous vegetation. Botanical artists reveal this beauty in an exhibition at Oude UB in Leiden.

On 25 February, the KOG opened its doors once more to welcome a large crowd of people looking to find their perfect study programme during the Bachelor’s Open Day. The aspiring students were welcomed in the various lecture halls where they were able to experience the ins & outs of the available programmes…