Working together in times of change. With enthusiasm, passion and connection as our keywords. That was the message emphasised by administrators Jasper Knoester and Luc Sels at the start of this new year for our Science faculty. ‘Hope for a better world means working together actively towards progres…

Thijs Bosker, Associate Professor of Environmental Sciences at Leiden University College (LUC) and the Institute of Environmental Sciences (CML), has received funding as part of a large consortium to study the impacts of microplastics on agricultural soils. The project will receive 7 million euro of…

ICT

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

Finance, Organisation

Researchers have used AI to reconstruct the rules of a board game carved into a stone found in the Dutch city of Heerlen. The team concludes that this type of game was played several centuries earlier than previously assumed.

An international team of scientists, including Xander Tielens of Leiden Observatory, has used space telescope Hubble and the ALMA observatory to show that UV radiation from massive stars can prevent planets from forming. The researchers publish their findings on 1 March in the journal Science.

What do you do when you get the chance to meet Nobel Prize winners in your field? You say ‘yes’, of course! Two young chemists from Leiden had the opportunity to attend the Nobel Laureate Meeting in Lindau, Germany. They share what the experience was like.

As Secretary General of the Royal Dutch Football Association, Gijs de Jong travels the world. The career of this Leiden public administration graduate tells the story of a petrol station attendant who became one of the top diplomats in Dutch football.

Three fundamental research projects at Leiden in physics, chemistry and medical science have received funding from the Dutch Research Council (NWO). They involve research on magnetic fields in the universe, the role of myeloid cells in cancer immunotherapy and the evolution of ancient proteins.

He had been back from Australia for less than 48 hours, but there was no sign of that. Michel Mandjes of MI had the honor of kicking off the very first Tuesday Talks: Science Insights on Tuesday. He did so with a presentation on complex networks.

How can humans and computers learn from data? To research this, scientists often use so-called Bayesian methods. Although these methods are widely used, they also have limitations and are not always easy to interpret. In her dissertation Rianne de Heide describes some of these problems and introduces…

Facility

For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…

By day, Roeland Merks works on mathematical models that describe cells and complex systems. In the evenings, he opens the door to a different world. In his home and art space De Spelonk, contemporary art, experimentation and curiosity come together — right at the intersection with his scientific per…

The glasses have been rinsed, the furniture is in place and the six-member board is ready. A very short time to go before De Fusie opens its doors in the Gorlaeus Building. The brand new bar promises to be a nice addition to the social life on campus. ‘We don't just want to run a cosy bar, but also…

What do you do when a discovery in the lab shows real promise? Scientist Mirjam Huizenga founded a startup to develop a new treatment for nerve pain caused by chemotherapy. ‘The goal is to give patients a better option.’

On August 22nd, 2024, the LACDR reflected on the transition of the Scientific Director Position from Hubertus Irth to Miranda van Eck. Hubertus Irth’s second term as Scientific Director ended on September 1. From this date, Miranda van Eck took over the role of Scientific Director of LACDR.

Multidrug-resistant pathogens and worldwide pandemics are increasing, making infectious diseases more prevalent. To develop new treatments, deeper knowledge of the interaction between bacteria and human cells is required. Ariane Briegel recently became a Medical Delta professor and studies such path…

The organ in the Academy Building is 25 years old. University organist Jan Verschuren and tuner Bert Crama talk about the long history of university organs, improvising with short cortèges and their love for this organ.

From the energy transition in Namibia to sustainable jobs for young Nigerians, from African cookbooks to vodcasts on vintage Swahili booklets: during a recent visit by the Executive Board, staff from the African Studies Centre Leiden and the African Library presented their research, teaching and acquisition…

The financial sector, supply chains and ecology. Not necessarily topics you might associate with physics, yet it’s exactly what new professor Diego Garlaschelli is dealing with. The common thread? Complex networks.

Anne Land has been working at Science Communication & Society — the department that researches and teaches science communication — for fourteen years. What makes her work special? ‘That moment when students suddenly realise: this is exactly what I want to do.’

Festival

Who holds rights to Greenland’s surrounding waters and natural resources? Which interests are at stake and for whose benefit? We put these questions to Hilde Woker, who specialises in the law of the sea in the Arctic.

UNESCO has recognized a large collection of handwritten letters and the archive of Raden Ajeng Kartini (1879-1904) as documentary world heritage. Kartini opposed gender inequality in feudal Javanese society, including forced marriages, polygamy and lack of education for women.

The new academic year also marks the start of a new term for our student and staff representatives. Dozens of them – some experienced, others new to the game – are itching to represent the interests of the university’s students and staff. On the Training Day for Student and Staff Representatives, they…

“Is it possible to restore antibiotic sensitivity in resistant bacteria?” Dr. Tingjie Guo wondered. “Watch me and learn”, phage responded. Dr. Tingjie Guo received an open competition XS domain ENW grant from the Dutch Research Council (NWO) to investigate the evolutionary trade-off of antimicrobial…

In studies, it is an old acquaintance, the p-value. But mathematician Peter Grünwald wants to get rid of it. The p-value is too susceptible to fraud and can lead to a distorted picture of reality and chance. That is why he wants to work with the e-value. De Volkskrant spoke to him about it.

Henk Hoekstra will take up the role of Scientific Director of Leiden Observatory on 1 January 2027. He succeeds Ignas Snellen, who has served in the position since 16 August 2022. Hoekstra has been appointed for a four-year term.

This month, Leiden University’s Joanne van der Leun steps into the role of Chair of Una Europa’s Board of Directors. She does so at an important moment of transition for Una Europa.

For the International Day of Women and Girls in Science, women students and researchers from physics talk about what inspires them about their work. From quantum to cosmology and biophysics, their curiosity about how nature works is what connects these women. What do these 5 scientists want to share…

The housing crisis is affecting a substantial group of Dutch citizens and is one of the main election themes this year. How did things get this far and what should the new cabinet do in the coming four years to address the problems? Three Leiden researchers give their answer.

A breakthrough from the PhD research of medical chemist Elmer Maurits may help patients with autoimmune diseases and blood cancer in the future. But bringing a discovery from the lab to the clinic is not so easily done. Thanks to NWO's Venture Challenge, Maurits and his team will receive ten weeks of…

He started out as a temporary staff member at the CML’s education office, and now – eight years later – Jasper Williams is the institute’s new Director of Operations. In this interview, he talks about entrepreneurship, making a social impact, and playing competitive bridge. ‘I like doing things properly,…

We have all been deeply affected by the events that took place in Rotterdam on Thursday evening. Our colleagues at Erasmus Medical Center and Erasmus University have lost a valued colleague and have been involved in a very serious incident, which will undoubtedly leave deep scars. The witnesses to this…

Lecture, Pint of Science

Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…

It was already the most cited publication ever written at our faculty, but now a new milestone has been reached. Last month, a paper by emeritus professor Jan Reedijk and his co-authors surpassed 10,000 citations — and the count keeps rising.

Ecologist Pengxuan Xie investigated whether rooftop farming can contribute to food production in cities. This is important now traditional food supply chains are vulnerable to disruptions.

What looked like an ordinary coot’s nest turned out to be a five-star location with a remarkable backstory. Beneath a jetty on the Rokin in Amsterdam, biologist Auke-Florian Hiemstra discovered a true time capsule — complete with face masks from the COVID era and a Mars wrapper dating back to the 1994…

Ecologist Sebastiaan Grosscurt became a successful wildlife journalist after graduating. But he decided to focus on science instead. He started his PhD research this year on the cumulative effect of light and noise pollution on animal behaviour.

You should start working now, and the positive results will only be seen long after your term has expired. That is just about the worst thing you can say to politicians and policymakers. Yet that is exactly the message of two recent reports on sustainable resource use from the Centre for Environmental…

While the Netherlands was in lockdown because of the coronavirus, PhD candidate Koen Rijpkema began his research into the same virus. In the lab, he developed molecules that can inhibit an important viral enzyme.

About forty microscopes, various laboratories, and some 15,000 zebrafish: that’s Sylvia le Dévédec's workplace. She is one of the managers of the Leiden Cell Observatory, a unique facility accessible to all researchers.