More CO2 in the atmosphere is making food crops more calorific, less nutritious and potentially more toxic.

A mega-dam around Europe is a possible solution as protection against rising sea levels. Whether that is really a good idea, was debated on by young professionals during the debate on the future of European coastal protection. 'A big dam may seem safe, but actually isn't,' argued debate winner Haye…

The Sustainability Monitor 2024 reveals that Leiden University has again taken significant steps to become a more sustainable and future-proof university. Since 1990, its carbon emissions have decreased by 50 per cent and, compared with 2019, its natural gas consumption has dropped by 32 per cent. Its…

Healthy and active Leideners and a smoke-free generation. These are the main ambitions of the Leiden Health and Wellbeing Agreement that was signed online by 40 partners on 19 April. Leiden University will also be drawing on its broad expertise to help realise the ambitions.

What is Planet A? A new exhibition in the Old Observatory sheds light on how we all have different perceptions of earth. In five art installations, visitors are confronted with their own beliefs and how these differ from those of others.

Professor of Brain, Safety and Resilience Anne-Laura van Harmelen has been nominated for the Huibregtsen Prize. The winner of the prize will be announced on the Evening of Science & Society (4 October).

Making Mars suitable for human habitation or giving first-year lectures as a student. For the past three years, 150 bachelor’s students have followed a challenging Honours track alongside their regular study programme. On 15 November they were awarded a certificate for their achievements.

Since the beginning of September, Emma van der Plas (20) is the new student ambassador for CADS. Emma is a third-year student and is currently following a minor in Sustainable Development in Leiden. Her goal? To eliminate the stigmas surrounding anthropology.

The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

Students of the European Union Studies track of MA International Relations visited Brussels this October and met many Leiden alumni who already work there.

As part of Leiden University’s aim to be a safe and healthy environment for all staff and students, several activities and lectures were organised in an action week around suicide prevention. Dedicated benches were also placed at several university buildings, including at the Faculty of Humanities.

Leiden physicists and chemists have managed to bring two graphene layers so close together that an electric current spontaneously jumps across. In the future this could enable scientists to study the edges of graphene and use them for sequencing DNA with a precision beyond existing technologies. Publication…

Iraqi-Kurdish student of Middle Eastern Studies Bareez Majid has been nominated for the ECHO Award. ‘She has a strong personality, though she may appear unassuming at first,’ was the comment from one of her lecturers.

On Thursday May 11, medical anthropologists from Leiden University organized a festive opening of their new network, the Leiden University Medical Anthropology Network (LUMAN). In August 2022, these Leiden-based scholars started gathering and organizing this new network with two main goals, namely to…

Leiden University, together with the Open University and Universities of the Netherlands, will take up residence in the Spui building at Grote Marktstraat 48-50/Spui 3 in downtown The Hague from 2025. The partners signed the leases on 7 November.

Chemical substances and nanomaterials are processed on a massive scale in diverse products, while their risks have not been properly assessed. Time and again synthesised substances have been shown to pollute the environment more than lab tests predicted. This is the warning given by Professor of Ecotoxicology…

The ‘right’ amount of dopamine in the brain makes study participants better at solving certain cognitive tasks. This is the conclusion of Bryant Jongkees after experiments and a literature review. PhD defence on 21 February.

The Netherlands Institute in Morocco is open to students from all Dutch universities. Two students explain why they are spending a semester studying in Rabat.

More than 700 visitors got to know the Science Faculty during the Leiden Science Family Day. People of all ages could enjoy fascinating experiments, tours, interesting lectures, spectacular nitrogen shows and various workshops. It was an informative day with many (future) scientists, amazement and,…

An investigation carried out by Dutch news programme Nieuwsuur has revealed that despite a recent ruling by the Centrale Raad van Beroep (Central Appeals Tribunal, CRvB), people who for years cared for a seriously ill relative paid for via a PGB (persoonsgebondenbudget, personal care budget) do not…

Online teaching has made it much easier for international students to join in our courses. The Leiden minor in Global Health, for instance. Students from Tanzania, Rwanda, Uganda and Malawi logged on and made a valuable contribution with their knowledge, about tropical diseases, for instance.

At the symposium ‘Diversity and Inclusion in the Police: from Aspiration to Reality’, the central question was how organisations can truly embody diversity and inclusion. The high level of interest (it was fully booked in no time) demonstrates that the topic is pressing—both in academia and in pract…

The new Ehrenfest multi-storey car park at the heart of the Leiden Bio Science Park was opened today by the Vice-Chairman of the Executive Board of Leiden University, Martijn Ridderbos. The car park, an initiative of the University, should improve accessibility and quality of life on the campus.

Psychologist Floor van Meer won the first Trial & Error Award for her research on the effect of being distracted while eating on eating behavior. This award from the Journal of Trial & Error (JOTE) honors the often underappreciated aspect of research: learning from errors. For her publication, Van Meer…

In a full lecture hall C1 the Faculty of Science started off the new academic year on Tuesday 5 September. The theme of the meeting was, just as it had been at the university's opening the day before, sustainability.

The government wanted to show some muscle by making it compulsory to wear face masks in public indoor spaces as of 22.00 hours on 14 October. But it looks as though this will be 1 November after all. No need for that, tweeted Leiden professor of constitutional law Wim Voermans on 14 October, you can…

From help with filling in complex forms to a buddy who will introduce you to student life. The Meeting Point for refugee students meets many needs. This was the finding of experienced experts at the symposium in honour of the one-year anniversary of the Meeting Point.

Do you often find yourself exhausted in the lecture hall or at your workplace? Not great for your mental well-being, as Laura Pape knows. She is investigating how an online self-help program can assist in addressing sleep issues and preventing mental health problems. Join her on this elevator pitch…

On behalf of its students and staff, the Executive Board of Leiden University would like to express our condolences to all those affected by last Friday’s earthquake in Morocco. We would also like to offer support to all students and staff who have family or friends in the area. In the meantime, several…

In the academic world interest in interdisciplinary research is growing. It can help to solve the big challenges of our times. But starting a research project that covers several disciplines is not always easy. This was one of the conclusions at a Young Academy Leiden (YAL) symposium. What are the c…

Seaweed, which is vital for marine life, is disappearing throughout the world at an alarming rate. Different currents and wave patterns can bring about recovery, but more research is needed. This is the conclusion of Achmad Adhitya. His PhD defence has a political edge because of his proposition and…

Rector Magnificus Carel Stolker expressed his support in the media for 'The Real Opening,' the protest against government cuts. 'The plans are a disaster for higher education.' Professor Remco Breuker, one of the organisers of this protest on 2 September, called in NRC Handelsblad for a stop to the…

With the lecture 'China and a complicated world', a lucky draw, and of course lots of food and drinks, the Faculty of Science celebrated the year of the dog. An international mix of staff and students took part in this third local edition of the lunar new year celebration.

On Tuesday, the 16th of May, the Faculty of Archaeology put a festive end to the 25th year celebrations. The programme included a dedication of our largest meeting room, the sealing and burying of a time capsule, and a BBQ.

Mathematician Oliver Nagy still vividly remembers the first time he learned about a random walk. ‘The lecturer told us to imagine a company of drunken students who wander in the streets. At each intersection, they would spin one of them around and all would go in the direction where he or she came to…

Five projects with researchers from Leiden University have received a grant from the Dutch Research Council (NWO) to build or upgrade existing research facilities.

17 November is International Student’s Day, dedicated to showcasing the international experience of international students in the Netherlands.

Is it possible to measure subtle oscillations caused by dark matter moving through the earth? A Dutch-American physicist team have discovered a new route toward what could be the first-ever measurement of ultralight dark matter. They suspended a microscopic magnet inside a superconducting enclosure,…

The Lucia de Berk case or the suicide of Slobodan Praljak at the International Criminal Tribunal for the former Yugoslavia: certain trials keep popping up in media. In her dissertation, Tessa de Zeeuw examines the cultural appeal of such cases and analyses artistic responses. ‘Artworks sometimes have…

The way age is determined by the IND is being questioned as a result of several court rulings. The problem is that it is difficult to determine whether a young asylum seeker is just over or under the age of 18. So far there is no suitable way to determine exactly how old someone is, Mark Klaassen, associate…

The 4G network will soon be replaced by 5G. 5G will enable users to set up faster and more reliable data links as well as better privacy protections. For intelligence agencies, however, the upgrade in data protections will create huge problems.

There is much wrong with the taxonomy of the plant genus Phyllanthus. Roderick Bouman of the Hortus botanicus Leiden has developed a new phylogeny for Phyllanthus and exposes the evolution of the plant genus. Publication in TAXON.

Leiden University has written an advisory report at the request of the Ministry of Justice and Security on a legislative bill to improve legal protection in youth protection. The report acknowledges the improvements that the proposed legislation would bring, but also provides criticism.

Astronomers led by Leiden astronomer Sebastiaan Haffert have directly imaged two planets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. While over a dozen exoplanets have been directly imaged, this is only the second multi-planet system to be p…

Alessandra Silvestri has been appointed professor in Theoretical Physics in the area of Cosmology. For her this promotion in Leiden is the icing on the cake. ‘But there are many more boxes I would like to tick.’

Annick Dezitter from Belgium celebrates 3 October with heart and soul: she has become a fanatical Leidener. Her portrait is part of Leiden meets Europe: an exhibition of 28 portraits of EU citizens in Leiden. City photographer and third-year Cultural Anthropology student Wilke Geurds explains.

Ever did something for the first time and got an award for it? Sabine Wenzel did. Her research about the surface of zinc oxide won her the Surface Science Young Investigator award.

A portrait can inspire, intimidate or reassure the viewer. Leiden University has many portraits of professors and students, from the foundation of the University to the present day. What purpose do these portraits serve? The 'Facing Inspiration' exhibition in the Oude UB is about this question.

Leiden alumn Colm O'Flynn joined the second MA programme at SAIS Bologna in 2015, and with good result: his final thesis was named the best of the year! Here, Colm shares his journey from Leiden to Bologna and beyond

On 28 October 2016, prospective female students explored the natural sciences at the annual Physics Ladies’ Day. This event, specially for girls in the final two years of high school, was being held for the third time. 'You don't necessarily have to be top of the class.'