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.

The European Space Agency (ESA) has published an interim data release from Gaia, the space telescope mapping out the Milky Way in 3D. The first scientific papers published today reveal half a million stars in the Omega Centauri globular cluster, nearly 400 candidate gravitational lensers and the positions…

Sharing his passion for sustainability with students—that’s what Thijs Bosker enjoys most about his work. As an environmental scientist, he conducts ecotoxicological research, but next to this he loves teaching. ‘Everyone can make a difference in their own way.’

An article in Leiden University’s Mare newspaper on 24 September states that the University Council advised against reappointing President of the Executive Board Annetje Ottow. The Board of Governors, deans and Annetje Ottow respond below.

There are many links between Leiden and the US. The highest office there has been held an impressive nine times by presidents with Leiden roots. This has led to memorable visits to Leiden University.

Sixteen master’s students from a variety of disciplines are helping The Hague Police to find new clues in a cold case.

A group of biology students are working on a solution to the world’s plastics problem by getting bacteria to make biodegradable plastic.

Assistant professor Joost Willemse firmly believes that as a teacher, you’re never done learning. ‘Students ask questions about things you’ve never thought of yourself. Ultimately, that makes you better at your job.’ That’s why he always encourages his students to ask questions. And it’s appreciated:…

We all know smoking is bad for our health. But we might not have known that the cigarette filters that litter our streets also impact the environment. Esther Kentin is a lecturer at Leiden Law School. She is raising awareness of the University’s cigarette butt problem.

He had been emeritus for 13 years when he suddenly received an email from Poland. Professor of Inorganic Chemistry Jan Reedijk was awarded an honorary doctorate from Nicolaus Copernicus University in Toruń. During the celebration of the 550th anniversary of the birth of patron Nicolaus Copernicus,…

It’s Saturday and electric minibuses ride back and forth bringing prospective students to Leiden University’s various faculties. They want to see for themselves whether that interesting-looking programme will suit them.

She walked into the Sylvius building as a wide-eyed twenty-something in 1984, and next year, she’ll be leaving us as a soon-to-be retiree in her sixties. Ine Tijdens (66) reflects on more than four decades at LACDR. ‘One year, I got a little whip for Sinterklaas. That says something about my persona…

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

One day you feel inspired by a field trip, the next you are a speaker at TEDxLeidenUniversity. It happened to International Relations student Alexia. How did she end up on stage – and why did she want to? Alexia shares her story with us. ‘I was given hope, and I wanted to share it with others.’

‘A challenging rollercoaster, but also a very bonding and insightful experience,’ that’s how the team of iGEM Leiden 2022 wraps up their participation in the iGEM contest. The contest for synthetic biology climaxed during the Grand Jamboree in Paris. The team ended up in the top 10 of over 360 teams…

For many students, a summer school abroad is a fun and useful way to spend the summer. This year, because of the travel restrictions, many summer schools were held online. There was no less interest from students though. What is it like to study in a different country, but digitally? Or to travel abroad…

An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

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.

There’s been a lot of commotion about the ‘Apartheid in Israel’ panel discussion being cancelled. The organisers, Students for Palestine, wanted to hold this at Leiden University’s Wijnhaven building in The Hague on 21 March. The Executive Board would only allow the event to go ahead if guarantees…

Before patients can take a pill, scientists often spend years in the lab developing and testing a candidate drug. That often includes experiments with laboratory animals. As head of the rodent facility, Ilze Bot and her colleagues ensure that these experiments are conducted in an ethically responsible…

Around 1,300 Leideners found 2,265 species during the Expeditie Stadsnutuur urban biodiversity inventory. ‘It’s been a huge success’, says scientific coordinator Frederic Lens.

On 26 November historian Jan Grabowski and sociologist Barbara Engelking will both give the Cleveringa Lecture. They wrote a book about the Holocaust in Poland and were taken to court for defamation.

No matter how long the queue at Brasserie Science gets: Pilvi Kipper can handle it. Everyone is greeted with the same friendly smile, and chances are the barista already knows your order. Her secret? ‘I make every cup of coffee with love.’

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

A consortium including economists, psychologists and public administration scholars from Leiden University will study public acceptance of the hydrogen transition in the Netherlands. They will look at the labour market impact, public perceptions of hydrogen and businesses’ willingness to invest.

On the university’s birthday, professors teach a class of 10 and 11-year-olds during Meet the Professor. The professors were bombarded with questions.

How do the residents of the Kooi neighbourhood in Leiden find living there? What can we do about loneliness? In this extraordinary academic year, students have been conducting all sorts of research, in Leiden. They presented their initial findings and recommendations at a Learning with the City meeting…

Leiden University is well known for its student associations, which provide a great way for you to get to know your fellow students. As well as parties and social events, student associations also offer excellent sporting and cultural opportunities.

With the holidays just around the corner in this dark month of December, when we light candles as a symbol of warmth and hope, we would like to take a moment to reflect on this past year. We have accomplished a great deal together but the year has been difficult at times.

A team of scientists, including Leiden Astronomer Alice Booth, has discovered silicon monosulfide molecules in the dust disk around a young star. Such molecules indicate planet formation. The team made the discovery using the ALMA telescopes. This method provides an alternative when direct observation…

Leiden University Academy is making lifelong learning even better! The entire range of programmes on offer for professionals has been expanded and united under this name.

PhD candidate Karen van den Akker has written a children’s book to get young girls excited about technology. The picture book ‘Met mama naar Mars’ tells the story of Luna, who wants to travel to Mars.

The moving boxes are unpacked, the floors are gleaming, and the workshop rooms look fresh and inviting. On Monday 16 June, the renovated Lorentz Center will be officially reopened by dean Jasper Knoester and rector Hester Bijl. Director Roeland Merks: ‘There’s a new energy running through our centre…

Het zichtbaar maken van ongeschreven verhalen van inheemse culturen en volken van de Cariben. Dat doet de tentoonstelling ‘Caribbean Ties’ in de Oude UB.

An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

Zou jij wel eens willen zien hoe het belangrijkste gebouw van onze Science Campus op het Leiden Bio Science Park tot stand komt? Op de Dag van de Bouw, op zaterdag 17 juni, kan dat!

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.

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.’

The promising early results of an international study have shown that insulin-producing cells grown from stem cells can cure the disease. The new Cure One LUMC research centre aims to accelerate this breakthrough.

Using the James Webb Space Telescope, an international team of researchers, including Leiden Professor of Molecular Astrophysics Ewine van Dishoeck, has discovered a palette of hydrocarbons in a planet-forming disc around a young, low-mass star. The results confirm that discs around very lightweight…

When do we say violence was used in an incident? The answer may seem obvious at first. But interim results from a study by Jolien van Breen show that Dutch people are labelling events in increasingly broad contexts as violent.

Using mathematics to determine whether scientific results are significant or not. Peter Grünwald, full professor of Statistical Learning at the Mathematical Institute (MI) and senior researcher in the Machine Learning group of Centrum Wiskunde & Informatica (CWI), has been awarded an ERC Advanced Grant…

For her research into migration policy under different political regimes, Katharina Natter has been awarded the Gratama Science Prize for young, talented researchers.

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

Biological chemist Nathaniel Martin and his team received an NWO grant to examine how blocking a specific enzyme in our body, NNMT, could be helpful in the treatment of some cancers. Trials with mice have been promising, and together with the Netherlands Cancer Institute, Martin wants to take the next…

Climate and human rights will again become major issues on the world stage by the end of 2023. The new series of lunch seminars by the interdisciplinary research programme Global Transformations and Governance Challenges (GTGC) seamlessly tie into these events. All Leiden researchers and students are…

Physicist Milan Allan will build an instrument that will bring superconductivity research further. He has been awarded an ERC Consolidator Grant of 2 million euros over the next five years. With his PairNoise programme he aims to detect paired electrons as they occur just above the temperature at which…

As of this month, Kim Bonger has been appointed Professor of Chemical Biology. As a first-generation academic, she’s especially grateful. ‘I wasn’t exactly a top student at school. I never could’ve imagined this.’

Opening van het Quantum Delta NL (QDNL) Talent & Learning Centre (TLC) Leiden-Delft.