Researchers at the Leiden Institute of Advanced Computer Science (LIACS) are collaborating on the development of a conversation tool for patients with breast, prostate and skin cancer. The aim is to create a conversation tool that can support cancer patients in their care and help them make decisions.…

Anyone in Leiden wanting to join a student association has plenty to choose from. But the risk of alcohol abuse is a very real one. Leiden University, Leiden University of Applied Sciences and dozens of student associations have signed a new alcohol covenant that promises they will do their best to…

From a vegan community kitchen to a green framework for drug development: sustainability became more visible in everyday campus life at Leiden University in 2025.

Aske Plaat is the scientific director of LIACS, the Leiden Institute of Advanced Computer Systems. He is also an ambassador for Leiden University's LGBT+ Network. His enthusiasm shines through when he explains why.

Once a year, former employee and avid runner Dennis Hoencamp returns to his old workplace. That’s when he competes in the Leiden Science Run. As an event coordinator, he once devised the relay race as an anniversary activity. It grew into an annual event for the entire University and the Bio Science…

The freedom to be who you are – woman, man, homosexual, heterosexual, transgender, religious, atheist, and so on – is perhaps the Netherlands’ greatest attribute. The principle of equality and the right not to be discriminated against are in the very first article of our constitution. Yet there is a…

Four PhD candidates from Leiden University started the two-year Europaeum Scholars Programme this month. They have now completed the first week of the programme. How was it and what do they expect from this programme?

Leiden physicist Anne Meeussen has been nominated for the title of New Scientist Science Talent. She will be up against 14 young scientists from other Dutch and Belgian universities. The polls are already open!

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

‘A Muslim and a Jew in the house of God.’ This is how historian Nadia Bouras introduced her recent conversation with colleague Sara Polak in Leiden’s Hooglandse Kerk. They discussed the rising tensions since the outbreak of the Israel-Hamas war. ‘Dare to ask each other questions.’

On Monday, 13 October, Jasper will travel to Brussels with a delegation from Key Region Leiden. Why is this collaboration important? And who will he be having dinner with that same evening in Voorschoten? Jasper shares his account of a long and interesting Monday.

Leiden University is under fire: it is allegedly doing too little to tackle antisemitism. Rector Hester Bijl responds to this accusation and to a video from 2014 on social media in which extreme remarks are made. ‘We can be short about such comments: they are unacceptable. The university is and always…

An international team of astronomers led by Ardjan Sturm of the Observatory has made the first two-dimensional inventory of ice in a planet-forming disk of dust and gas surrounding a young star. The researches, including Melissa McClure, used the James Webb Space Telescope and publish their findings…

The world is in turmoil. International wars and conflicts have been raging for some time. And political and social developments are causing insecurity, uncertainty and unrest. This has not gone unnoticed within our university community. We have seen protests, demonstrations and other incidents. This…

Racism and discrimination come in many different shapes and forms – in the Netherlands too. Verbal attacks, stereotypes and violence: some people are confronted with these on a daily basis. A group that is often not included in research and the debate on racism is people of Asian descent. The Diversity…

Tuesday was the opening session of the LDE Bachelor Honours Programme Sustainability. Lecturers introduced themselves, students got to know each other and it was revealed what they will do to contribute to a more sustainable world in the coming months. "I immediately feel like getting started," said…

What do ten-year-old children and chatbots have in common? PhD researcher Bram van Dijk studied language development in both children and AI language models. ‘It’s actually quite practical that we attribute human traits to a chatbot.’

How can we best treat infectious diseases in people with obesity? Hospital pharmacist and PhD researcher Koen van Rhee studied how obesity affects blood levels of two commonly used medicines. He also developed a method for pharmaceutical companies to test new drugs on this patient group.

Ever since the first edition of the Science Run, the Leiden Student Running Association Currimus has delivered the winning team or the fastest runner. Now the event is back, the new batch of students must uphold the honour. The board is also forming a team: ‘During the upcoming training session, we…

The Faculty of Science launched the new Academic Year on 21 September with a special We Are Science talk show. Dean Paul Wouters starred in his role as talk show host and received a wide variety of guests.

He is always positive towards his students, helps them see the bigger picture of the programme, and tries to remind them that ‘a degree is an enormous opportunity to grow in directions that genuinely interest you.’ Thomas Moerland, assistant professor at LIACS, has been nominated for Lecturer of the…

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.

Greenhouse gas emissions related to pharmaceutical consumption increased by 77 percent over the past 24 years, according to a Leiden University study published in The Lancet Planetary Health. Moreover, efficiency gains have stalled since 2008. ‘Our best option is reducing consumption and minimising…

How are supermassive black holes born? That is the question astronomer Elena Maria Rossi is trying to answer. But how do you investigate something you cannot see?

Chemotherapy, but without hair loss or extreme fatigue. It may be possible if the toxic drug only becomes active where it is ‘switched on’ by light. Matthijs Hakkennes has helped bring that idea closer to reality and obtained his PhD cum laude. ‘I received many thank-you emails from China and Bangla…

The student debate in Leiden’s Stadsgehoorzaal promised to be ‘the key to your vote’. That may sound hyperbolic, but what this well-attended debate did achieve was increased trust in politics. ‘They even let each other finish their sentences’, the flabbergasted students concluded at the end.

Stack two layers of graphene, twisted at slightly different angles to each other, and the material spontaneously becomes a superconductor. Science still can't explain how something so magical can happen, but physicists use special equipment to reveal what is taking place under the surface.

Buurtlab 070 is a new Leiden University project in which residents, researchers and students from The Hague work together on climate, sustainability and biodiversity solutions. What do they expect of the lab?

Student dean Romke Biagioni is committed to help students have an easygoing and pleasant time during their studies. She assists students with disabilities, looks for solutions to problems such as housing issues and counsels students with social or financial problems. For MSc student Computer Science…

Challenge yourself, broaden your horizon and meet people from different background. Curious if the Honours College is right for you? Rebecca and Pepijn from the track 'Bèta and Life Science' share their doubts, experiences, and what they find so appealing about the programme. Rebecca: ‘I enjoyed one…

This is a difficult time. Above all, for all those directly involved in this horrible case – unacceptable behaviour by a professor and his removal from the University – the case we went public about on 18 October and that has been reported in the media. This is painful and tough for the complainants…

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…

The English-language interdisciplinary minor ‘AI and Society’ explores the role of artificial intelligence in our society. The interdisciplinary nature of the minor is proving beneficiary for students and lecturers alike. We sit in during a class.

Leiden University’s President of the Executive Board, Professor Annetje Ottow, has been reappointed for a second term by the Board of Governors.

The Air and Space Law (Advanced LL.M.) master’s programme at Leiden University is among ten ‘excellent master’s programmes’ at Dutch universities. This is according to ‘Keuzegids masters 2024’, a guide to master’s programmes in the Netherlands.

The academic year has officially begun! Hundreds of colleagues and students came together on 6 September to see each other again after the quiet summer months. A truly festive gathering, with live music and an evening lecture by Ignas Snellen.

Aline Vidotto has been appointed professor of Stellar and Planetary Astrophysics at the Observatory from 1 February. Vidotto has been with the university for 3.5 years and for her, the appointment is ‘a milestone in her career.’

In Leiden University's video series on Leiden and The Hague as student cities, students interview each other at their favorite spots. In the fifth video of this series, archaeology student Azra spoke with Biology student Floris in Naturalis Biodiversity Center.

Education, Facility, ICT

Discover budding creators, artists and researchers at the Night of Discoveries art and knowledge festival. And many researchers from Leiden University are taking part.

Michiel Veldhuis received the most public votes for the C.J. Kok Public Award and may therefore call himself Discoverer of the Year. Veldhuis researches how climate change affects savannah ecosystems in Africa and how we can protect them.

Studenten blijven tevreden over hun opleiding en docenten, maar studentenwelzijn en de aansluiting op de arbeidsmarkt blijven belangrijke aandachtspunten.

The 289 students who recently moved into the tower on Kolffpad at the Leiden Bio Science Park are sitting pretty. A self-contained unit in the middle of the campus yet surrounded by green, with a launderette, games room and study area on the ground floor, and, coming soon, a branch of Coffee Star.

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.

Lawyer and human rights activist Lilian Gonçalves-Ho Kang You is the new Cleveringa professor.

In 2022, Leiden will be the European City of Science. The preparations are in full swing, so we would like to give you a look behind the scenes. This time we talk to Ewine van Dishoeck. She is the driving force behind the annual programme at the Faculty of Science. As far as she is concerned, there…