Leiden and The Hague have an extra 450 trees thanks to a special campaign to mark the 450th anniversary of the Relief of Leiden and Leiden University’s foundation. Over the past few months, Stadslab Leiden has worked on an initiative to plant young trees with the residents of the two cities.

The number of insect species is plummeting, which is why the University is creating a more biodiverse environment around its buildings. Annetje Ottow, President of the Executive Board, planted the first bee-friendly plants in the front garden of Oude UB on 20 September.

The effects of sustainability projects on poorer, marginalised people should be considered at a much earlier stage. This is the opinion of Marja Spierenburg, Professor of Anthropology of Sustainable Development and Livelihood, who will give her inaugural lecture on 25 February.

Leiden University and Stadslab Leiden invite you to improve the Leiden and The Hague environment with 450 extra trees – a living reminder of 450 years since the Relief of Leiden and the foundation of Leiden University.

Martijn Verkuilen is the winner of the Unilever Research Prize 2022. By transferring DNA from a plant into yeast, he made the first move to produce a new drug for type 2 diabetes. He collected his prize in Wageningen on 24 November.

Op zaterdag 3 juni vindt de Museumnacht Leiden plaats. Ook dit jaar zijn Leidse wetenschappers en studenten onderdeel van de programmering.

Sustainability researchers can play an important role in the energy transition. But what if their partners are not (yet) sustainable and science itself has adverse effects? This is the subject of an online talk by researcher Thomas Franssen on 16 December with a discussion afterwards. ‘Clean energy…

You may already have seen them in the larger restaurants in the teaching buildings: simple yet tasty hagelslag or cheese sandwiches. Students asked and the University Services Department (UFB) has delivered with its new Pure Basic line. Now there is a lunch for every budget.

Playgrounds often fail to accommodate children with autism, according to researchers Carolien Rieffe and colleagues. They have published an essay offering practical advice on how to make all children feel safe and welcome for Autism Week (Dutch) and World Autism Autism Awareness/ Acceptance Day on 2…

Fantastic plants, dizzying patterns and pulsating sounds: researchers from Leiden are going to study the effects of a simulated psychedelic trip on the mind and body at Lowlands Festival. Why might this be interesting for therapies?

For a long time, Thijs Bosker was an average student, until he discovered how exciting learning becomes when there are no ready-made answers. To his students, he passes on one key message: hope is the driving force that keeps us moving forward. They nominated him as Lecturer of the Year.

Social

The environmental risks of new pesticides containing nanoparticles are inadequately researched, according to four Leiden scientists in the scientific journal Environmental Science & Technology. They call for an examination of the long-term and environmental effects of pesticides containing nanoparti…

In a new study published in PLOS One, Leiden archaeologist Anastasia Nikulina, together with an international team from France, Denmark, the United Kingdom and the Netherlands, challenges the long-held belief that early humans had minimal impact on their environment before the rise of farming.

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.

After three years of covid postponements, the time had finally come on Wednesday 29 June 2022: Carel Stolker’s last speech as Rector Magnificus was buried according to tradition under the ginkgo tree in the library at the Kamerlingh Onnes building.

Education

An impressive 22 research projects by Leiden researchers have been awarded Veni funding from the Dutch Research Council (NWO).

Annetje Ottow is the first female president of the Executive Board of Leiden University, which means a return to her Alma mater.

Grondstoffen werden vroeger over duizenden kilometers afstand vervoerd. Waarvoor werden ze geruild en waarom sloten mensen in West-Azië zich aan bij deze handelsnetwerken?

A day at the beach, games, a visit to an embassy and a pub crawl. The activities at HOPweek help new students get to know not just The Hague but each other too.

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

Light, open and green: a description that fits the new, renovated location of the Faculty of Humanities. The official opening of the Herta Mohr Building took place on 8 October, and it has many remarkable features: for example, recycled ‘mushroom columns’, a pedestrian bridge to the University Library…

Leiden University is celebrating its 450th anniversary in 2025 with a feast for the eyes, ears and spirit. The anniversary year opens with an extra special Dies Natalis on 7 February. Highlights includes an alumni festival, three exhibitions and a canal concert.

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

Leiden PhD candidate Mona Shahab climbed Mount Everest two years ago to raise money for the education of disadvantaged children in Egypt. She made it to the top and posed there with the University flag. She recently presented the flag to Rector Carel Stolker.

The Dutch Research Council (NWO) has awarded Vidi grants to Leiden researchers.

Leiden biologists have found a mutation in flour beetles that allows them to speed up their development. The study has been published in Nature Ecology and Evolution.

A bacterium hiding from the immune system and picking up bits of DNA from its environment. The result: gaining new traits, such as better protection against antibiotics. Fortunately, we have not found such a damning scenario yet. However, PhD student Renée Kapteijn did find the first clues, which…

How can we make our cities greener and more people-friendly? Two Campus The Hague projects have secured a grant from the Municipality of The Hague. The researchers and students from both projects are working with city residents to find sustainable solutions to local issues.

Some thirty Leiden students balanced on SUP boards for the Supping for Sustainability Lustrum activity. Together with alumnus Merijn Tinga, better known as the Plastic Soup Surfer, they paddled their boards through the Leiden canals and waterways, fishing plastic waste out of the water.

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.

Sinds vorig jaar staan er gekleurde pilaren op de universiteitscampus. Met deze ‘Act of Kindness Pillars’ wordt eenzaamheid bij studenten tegengegaan.

From sponsored runs to festivals and from open days to concerts: Leiden University hosts lots of events each year. We are highlighting six of them for 2023.

The English taught interdisciplinary minor Violence Studies looks into various facets of interpersonal violence. Is this minor for all Leiden students? These two 'colleagues' are certain of it.

The new Students for Leiden party pulled off a stunning victory in the municipal elections. From nowhere, the party won two seats on Leiden Municipal Council. How are brand-new student councillors Mitchell Wiegand Bruss and Elianne Wijnands doing? ‘We’ve already asked questions about the quality of…

They confounded expectations and went to university anyway – as a woman of colour, a working-class student or refugee... Throughout the centuries the university has always welcomed pioneers. Students for whom going to university was not the obvious choice and who did not grow up in an academic environment.…