Fishes rely heavily on sound to find their way during migration or dispersal. Many species are affected by noise pollution. Hans Slabbekoorn from the Institute of Biology Leiden received a HORIZON2020 grant of 500,000 euros to study the impact of sound conditions on movement decisions of fishes.

There are some lecturers who are better equipped to provide remote education than others. And then there is Aris Politopoulos, who already owned professional streaming gear long before he could apply this in his education. Now he lectures on ancient Assyria while sitting in an Assyrian palace, moving…

With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our Galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.

69% of young Dutch people are struggling financially. They’re more likely to take risks by gambling, investing in cryptocurrencies or paying on credit. Like most Dutch people, the young are turning to family and friends for help and advice, rather than experts.

Meticulous analysis of hundreds of photographic plates from the star J1407 between 1890 and 2007 show no stellar eclipses. Robin Mentel, a master student at Leiden University, could not detect eclipses of the star J1407 by a planet hypothesized to have giant rings, called J1407b. However, an eclipse…

ChatGPT, translation machines and bots: for Carole Tiberius, they are a piece of cake. On 1 January, she was appointed professor of Computational Linguistics. 'There ae two elements to the field: computer science and linguistics.'

This international conference, held in Leiden form 22 to 24 May 2017, focused on adat law in Indonesia a century after the Adat Law Foundation (Adatrechtstichting) was set up in Leiden by the famous professors Van Vollenhoven and Snouck Hurgronje. In the decades that followed the Adat Law Foundation…

They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.

Detecting molecules with temperature instead of chemical reactions: that’s what scientists from the Leiden Institute of Physics want to do. They are developing a sensor that utilizes special nanoparticles to keep track of certain molecules. In this way, they can for example see how well new drugs do…

On 11 May the House of Representatives voted in favour of a law that will enable some sectors to reopen sooner than planned with the aid of test certificates. Political philosopher Josette Daemen is critical of the new legislation. ‘Just because we get used to measures doesn’t make them desirable.’

What does Leiden physicist Wolfgang Löffler think about the award of the Nobel Prize for physics to Arthur Ashkin, Gérard Mourou and Donna Strickland?

The Hague is the archetypal multicultural city. With a different language spoken on every street corner, this makes it a paradise for linguists such as Ingrid Tieken-Boon van Ostade. Her book Languages of The Hague is a collection of fascinating conversations with the city’s non-native speakers.

In the past, the Dutch community living in Cairo made an annual visit to the then Leiden-only mission to Saqqara. They would come out and have a nice picnic together with the excavation team and visit the monumental New Kingdom tombs. The current Leiden-Turin expedition would very much like to revive…

In August 2014 Stefano Bellucci started working as Senior Lecturer in African History at the Institute for History.

Young academics often face uncertainties in their academic careers. It is for precisely this reason that Leiden postdocs recently united in a representative body. The Leiden University Postdoc Assembly (LUPA) wants to be a positive force for change, says Eduard Fosch-Villaronga.

The Faculty of Archaeology proudly presents the research brochure Perspectives on the Past, featuring passionate, dedicated researchers introducing a dazzling scala of research topics: from present-day traditional knowledge in Africa to the power of glue in Palaeolithic Europe. In addition to these…

The international World Cultural Council (WCC) has awarded Nadine Akkerman, Victoria Nyst and Alicia Schrikker with Special Recognition Awards given to young scientists at the university organising the award ceremony. Leiden University organises the 34th WCC award ceremony this year.

The university is committed to providing an accessible learning and working environment for students and staff. They should be able to feel at home at our faculty. That is why there is now an all-gender toilet in every humanities building to contribute to that feeling of recognition and safety.

On 26 November 1940 Professor Cleveringa held his courageous speech protesting against the dismissal of his Jewish colleague, Professor Meijers. Cleveringa was arrested and the university was closed. Every year the university honours Cleveringa with a chair and meetings throughout the world.

Leiden University College The Hague (LUC) is celebrating its fifth anniversary. This English-language programme with on-campus teaching for excellent students has proved to be a great success. On Saturday 10 October, the LUC will be celebrating in Diligentia Theatre in The Hague with numerous speakers,…

Simon van Hoeve is a student of the master’s degree programme International Relations. Every week, he makes a podcast episode for his study association, in which he discusses topics related to his study programme with his guests.

To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

University lecturer Steven Lauritano has been awarded a Comenius Teaching Fellow grant. Lauritano will use the grant of 50,000 euros to improve hybrid education in classes featuring particular objects.

How are you doing in these strange and unprecedented times? That is the question we are asking our colleagues in this series. Rosalinde Spitters, for instance, skills lecturer at the Faculty of Social and Behavioural Sciences.

The new minor in 'Creative strategies for a society in change' will start in September. The Leiden Academy of Creative and Performing Arts (ACPA) has entered into a partnership with the The Hague Film House and will be letting students experience what it is like to work as an artist. ‘We want to teach…

Museum De Lakenhal is displaying the smallest work of art in the world: a 3D-printed statue of Rembrandt van Rijn, made by sculptor Jeroen Spijker and researchers from Leiden University.

A cover over your drink in the pub, deodorant as pepper spray or headphones to avoid hearing catcalling: many women use everyday objects to feel safer in public spaces. Student Anne van der Linden made an online exhibition about this.

The new University Sports and Exam Centre is another step closer. Bigger sports and exam halls, plenty of room for meeting people, an open feel that integrates with the Campus Square and the sports fields, optimal acoustics and an uncompromisingly sustainable building with a green facade and solar panels.…

With the emergence of social media platforms such as Twitter, Facebook and Instagram, it’s easier than ever to share information. Including disinformation. During his PhD computer scientist Xueqin Chen developed a new way to recognise fake news and predict how messages spread within online social networks…

Professor of Criminalistics Charles Berger thinks miscarriages of justice can be avoided more often by clearer determination of the truth. He therefore not only wants to focus on the advancement of forensic science, but also on improving lawyers’ reasoning of the evidence. Inaugural address on 3 Feb…

As young people’s friendships improve, their mental resilience also increases. This is according to research conducted by Anne-Laura van Harmelen, Professor of Brain, Safety and Resilience at Leiden University.

Leiden University will move into the former Ministries in the Wijnhavenkwartier. In this way the Faculty Campus The Hague will eventually grow into a university location for 3500 students.

On Tuesday, September 17th, the Dutch king, Willem-Alexander, will present the plans of the new government of the Netherlands. This government’s aspirations, led by the party (PVV) of right-wing nationalist Geert Wilders, are mostly defined by budget cuts. One of the sectors receiving such budget cuts…

With cancer, the immune system is a double-edged sword: it can attack tumour cells, but can also help them grow and spread. It is a question of harnessing it. This is what Professor Karin de Visser argued in her inaugural lecture on 15 November 2019.

How is it that the internet works so well, with billions of users sending millions of gigabytes all together every day? That's because the foundation of the internet is solidly set up. Yet sometimes there are problems on the internet. For example, when certain systems misbehave and disrupt the routing…

How can historical archive sources by non-elite groups help us understand modern-day politics in South Asia? This is one of the main themes of Prof. Nira Wickramasinghe’s inaugural lecture on 14 March.

Missions to the moon have become popular again. In just one week, a lunar mission from Russia failed while India landed a spacecraft in a historic first. Companies, too, want to go to the moon. But can anyone just go to the moon? Tanja Masson-Zwaan explains the rules of international space law on Dutch…

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

PhD candidate Wouter Verschoof-van der Vaart has received the Stichting Elise Mathilde Fonds grant from the Leids Universiteits Fonds (LUF) to work on a research project focusing on the landscapes of the Second World War. ‘We will combine citizen science with deep learning to uncover traces of the c…

Daniela Kraft and her research are a familiar fixture at the Leiden Institute of Physics (LION). Both have been awarded fellowships, grants and frequent media coverage. Effective July 1, Kraft has been appointed professor of Experimental physics, particularly in soft and biological matter.

With the start of the new academic year, the Social Resilience & Security programme proudly presents their yearbook. In the yearbook, you read about the programme’s interdisciplinary research building bridges between institutes, its educational activities such as the new Minor ‘Violence Studies’ and…

30 Years of Pale Blue Dot - 14 February 2020, Kaiserzaal, Old Observatory - The Pale Blue Dot Symposium is an event to celebrate the 30th anniversary of the iconic picture showing the Earth as a tiny speck in the vastness of space and to discuss its impact on humankind. At the end of the symposium,…

Maritime archaeologist Martijn Manders has been appointed professor of Underwater Archaeology and Maritime Cultural Heritage Management at Leiden University. He will combine his new appointment at the Faculty of Archaeology, which began on 15 July 2022, with his current position at the Cultural Heritage…

During a meeting at the University on 10 November, staff spontaneously removed a painting by artist Rein Dool from the wall in one of the meeting rooms in the Academy Building, reversed it and placed it on the floor. A tongue-in-cheek action with a serious undertone. This has led to a lot of commotion…

On May 25th, Prof. Damian Pargas will hold his inaugural lecture

The certificate award ceremony of the Honours College took place in the Hooglandse Church in Leiden on Tuesday 21 November. During the ceremony, two students shared their experiences with honours education while Vice-Rector Hester Bijl addressed the students.

A group of patients were given a guided tour of the larger than life Rembrandt canvases on University buildings around the Rapenburg canal. This was with the help of students from Present, a volunteer organisation, who pushed their wheelchairs over the bumpy cobblestones. The canvases are on show until…

Elon Musk managed to foil a strategic Ukrainian drone attack with the push of a button. It clearly shows that democracy is hanging by a thread, says Associate Professor of Constitutional Law at Leiden University and Professor of Digitisation and the Democratic Rule of Law at the Open University, Reijer…