Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

Making learning material come alive and convey it in the best possible way: that is the aim of education developer Wybrigje de Vries of the Science Teacher Support Desk. Together with university lecturer Edgar Blokhuis, she developed the online module ‘Error Assessment’ for first-year LST bachelor students.…

It doesn't happen every day that the research project of a first-year bachelor’s student results in a scientific publication. And not only that, but as first author and on the cover of a leading physics journal. ‘We have given our lab education a thorough overhaul and it is paying off.’

What is the significance of the history of slavery for our present-day society? A special exhibition in the inner courtyard of the Academy Building features eleven insightful portraits of students and staff, and their answer to this question. The aim of the exhibition’s initiators is to make the subject…

Leiden researchers from different disciplines look together at complex social problems. What happens when they join forces with artists? The results could be seen on Tuesday 11 June during a unique exhibition. Take a look for yourself:

And the construction has started! Students of the Leiden Science study associations ceremoniously hammered down the first poles of the new Gorlaeus on Tuesday morning. By doing so, they initiated the second phase of the construction of the second part of the new building.

In a paper, researchers suggest how the next European Commission can develop an alternative policy model that centres people’s well-being.

Did he dare take a gamble with his PhD research? Jeroen Methorst didn’t have to think long about it. It could fail or turn out very well. The latter is the case. Methorst developed a computer system that helps researchers find the protein they need. ‘Our whole group is now using this program.’ Methorst…

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…

Effectively treating a severe case of pneumonia is often challenging. Identifying the pathogen behind it can be difficult. PhD candidate Ilona den Hartog tried something new: ‘We searched for answers in substances our own body produces.’ PhD defence on 17 September.

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…

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.

Jeroen van Gessel’s lecturers didn’t always have time for extensive feedback on his written assignments. So, together with tech-savvy friend Menno Hahury, he founded Eduface, a startup to develop an AI teaching assistant. ‘The first users now work three times faster.'

Give organisms like plants and animals the freedom to move, interact and meet their own needs, and they will thrive on their own, says Professor Geert de Snoo. Our interference often ends up doing more harm than good.

‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…

The dark matter of biology: clumps of sugar molecules that, for example, form sugary webs around pathogens. We know very little about them. Wouter Remmerswaal threw all his talent into the challenge – both in the lab and as a modeller – and succeeded. He received his PhD on 12th September.

It is one of the most talked-about subjects right now: how do we eradicate sexual harassment and violence? Alumnus Femke Eisma is the spokesperson for Mariëtte Hamer, the government commissioner tasked with tackling this persistent social problem. Eisma studied the Dutch language at Leiden. How is her…

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…

The university elections are coming up. Sustainability, inclusion, student well-being: what do you think should get more attention? From 22 to 25 April you can vote for who represents you as a student on the University Council and your faculty council. Read on to find out more about the six student…

The importance of science communication and cross-boundary collaboration, and the ‘mantra’ of diminishing social cohesion in society: these all came up at Leiden University’s 448th Dies Natalis. A panel discussion including Leiden’s mayor Lenferink, music and two honorary doctorates completed the special…

Not all students spend the holidays with family and friends. The Leiden University Winter Weeks gives these students the opportunity to take part in a range of fun and free activities. The student well-being team worked again with student organisations from Leiden and The Hague to organise this year’s…

Opting more often for mocktails or soft drinks rather than beer or wine, talking to others about their drinking and pointing out the ban on drugs. Leiden University’s new covenant on alcohol and drugs for study associations encourages providing more alcohol-free alternatives.

How should the municipality of Eindhoven organise the reception of asylum seekers? What is the best electoral system for the Dutch Parliament? Governments regularly ask citizens for their opinions. Computer scientist Michiel van der Meer has improved the method used for citizen assemblies. He will defend…

PhD candidate Julia Wąsala searches for greenhouse gas emissions in satellite data. As a computer scientist, she bridges the gap between computer science and space research. ‘We really can't do this research without collaboration.’

Protests have been raging in Iran for two months since the death of 22-year-old Mahsa Amini. The role of social media in the protests against the Iranian regime should not be underestimated, says Senior Assistant Professor and Iranian Babak RezaeeDaryakenari.

Gilles van Wezel will step down as Scientific Director (SD) of the Institute of Biology Leiden (IBL) as of June 17th. He has held this position since September 2018. Van Wezel will be temporarily succeeded by Hubertus Irth, the current SD of the Leiden Academic Centre for Drug Research (LACDR). Irth…

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…

An evolutionary 'trap' that has haunted crested and marbled newts for 25 million years: Leiden researchers have uncovered a mysterious DNA error that should not be able to arise – yet persists all the same. How is that possible? PhD candidate James France found new clues.

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.

A staggering 6.5 billion chicks are killed worldwide every year. These are generally male chicks that are of no economic value. In Ovo has developed technology that can quickly determine the sex of a chick, to ensure that only female chicks are hatched. The first 150,000 chicks have now hatched in this…

Mechanics play a larger role in blood vessel formation, and other developmental biology, than previously thought. Cells appear to respond to mechanical signals, such as pressure. Through the extracellular matrix, a network of fibrous proteins, cells can supposedly exchange those mechanical signals over…

Few researchers see potential in research on glioblastoma, an incurable brain tumour. Alexander Kros brought together colleagues who are up to the challenge. European research funder ERC recently made 10.6 million euros available, a year earlier NWO provided 3 million euros. ‘In six years, we certainly…

No less than six Leiden projects received a grant for quantum research from the national growth programme Quantum Delta NL and the NWO. After all, in order to boost quantum technology not only industry is needed, but also science. Research towards new sensors, faster algorithms and quantum materials,…

Herman Spaink knows of many substances that may help combat tuberculosis. Lab space to study them safely is very limited in Leiden. A brand-new lab at Universitas Gadjah Mada in Indonesia will soon provide a solution. About time, says Spaink, ‘The disease is on the rise and is becoming less sensitive…

A patent for what may be a potent, new antibiotic. And: a clear overview of promising approaches to overcome a crucial resistance tactic employed by bacteria. In the span of one week, two researchers from Leiden are receiving their PhDs, each of them on an important step in the battle against bacteria…

Nano-plastics cause malformations. Meiru Wang, researcher at the Institute of Biology Leiden, looked at the extreme effects polystyrene nano-particles could have, using chicken embryos as a model. Her results were quite alarming. Especially as nano-particles are everywhere. In the air, floating through…

Leiden University was present for the second time at the second Leiden Pride on Saturday.

Are you the first in your family to go to university? Or is the Dutch education system unfamiliar because you (or your parents) didn’t grow up in the Netherlands? Going to Leiden University is a great achievement, but it might feel overwhelming too. These tips will help you settle into student life.

The course Designing Your Life helps students navigate their career pathways. As it turns out, these pathways are full of twists and turns and - as with many journeys - you only make progress once you gather the courage to take the first step.

The ‘Committee for Assessing Ethical Aspects of Partnerships’ is being launched this month. This committee, created by Rector Magnificus Hester Bijl and consisting of former and present Leiden University researchers, has been tasked with assessing Leiden University’s institutional ties with organisations…

How do you detect life on a planet light years away? During her PhD research, astronomer Willeke Mulder worked on an instrument to detect such signals – culminating in an experiment from a hot air balloon.

Lecture, Astronomy on Tap

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. Jasper first wrote his column from Kuala Lumpur, and it was ready to share. Then a crisis arose this week that demanded…

‘Our faculty is a very international community. And that is something everybody really benefit from,’ says Yun Tian. As the officer internationalisation, she is the bridge between international students and staff, the faculty and universities abroad. ‘Science goes beyond countries and carries no nationality.…

Researchers at the Universities of Amsterdam (Uva) and Leiden together with the Netherlands Cancer Institute and Oncode Institute have received a €10,6 million ERC Synergy Grant to develop innovative therapeutic approaches to target glioblastoma. This is a deadly primary brain tumour for which no curing…

Alternative demonstrations were held in Leiden and The Hague on Thursday 14 November after the national protest in Utrecht was cancelled. Leiden University supports these protests, which were organised by WOinActie. Read our live blog of the demonstrations.

Leiden students working to solve a sustainability problem at the request of an external party: that is the Sustainability Challenge. During a recent symposium, 28 groups of four to five students unveiled their solutions. The commisioners expressed great enthusiasm.

There are many tributaries to Rosalin Kuiper’s story and they all lead to the sea. The 28-year-old sailor was one of the five-person Team Malizia in the world’s most prestigious sailing competition: the Ocean Race.

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…

Eleven lecturers from Leiden University have been awarded Comenius grants that will allow them to work with their teams on an innovation project within their own teaching. They have been awarded three grants of 100,000 euros within the Senior Fellows programme and four grants of 50,000 euros within…