Packages of DNA strands containing silver, measuring just two or three nanometres in size. Leiden physicists Donny de Bruin and Dirk Bouwmeester create these packages, which can enter living cells on their own. They then activate the silver with light, causing the cells to break down. This could, in…

Mass, time, space, and complexity — physicists in Leiden are launching eight new research projects tackling some of the most fundamental themes in quantum mechanics. Their goal: to push the limits of current quantum theories.

Symposium on the extraordinary excavations at Middenbeemster

Some of the most significant and surprising astronomical breakthroughs that have shaped science, technology and culture over the last century are showcased in the Above and Beyond open-source exhibition. This exhibition was commissioned within the framework of the International Astronomical Union's…

Tijdens Leiden Revisited kregen alumni van de Rechtenfaculteit de mogelijkheid om zich weer even echt student te voelen. Dit jaar vond het evenement namelijk plaats in de (oude) vertrouwde collegebanken van het Kamerlingh Onnes Gebouw.

The Van Bergen Fund aims to promote contacts between Dutch and international students in order to achieve a better understanding of each other's cultures. At the Symposium for Diversity and Inclusion the two winners of the Van Bergen Award 2015 were announced.

The 18.8 million euro NWO Zwaartekracht grant for quantum software which Amsterdam, Delft and Leiden landed collectively, means for Leiden University among others the appointment of two new permanent scientific staff members, who will each form their own research group, divided among Computer Science,…

On 12 and 13 September 2019, the Institute of Tax Law and Economics from Leiden University hosted 29 PhD researchers from around the world to engage into collective discussions at the Multilateral Cooperation in International Tax Law seminar.

Leiden physicists Tjerk Oosterkamp and Dirk Bouwmeester have received a 1.3 million euro Science-Groot grant from NWO to catch a mystery at the core of quantum mechanics, together with Amsterdam physicist Jasper van Wezel.

On Tuesday 6 September, the faculty year 2022-2023 got off to a great start with Leiden Law Op 1, our yearly talkshow live from the Kamerlingh Onnes Gebouw. Together with the Faculty Board, academic staff and students, we looked ahead to the upcoming academic year.

Leiden physicists have created a light source that emits individual particles in an identical state through optical fibers. Using this setup, their measurements can last longer and are more efficient, meaning they can perform more in-depth research on bizarre quantum effects, such as interference and…

Simone Lemmers has been awarded a Leverhume trust funded PhD Position at the University of Durham, UK in the field of Biological Anthropology supervised by Dr. Jo Setchell (Antropology, Durham University) and Dr Wendy Dirks (Newcastle University) starting October 2013.

Local broadcaster Omroep West recently joined one of the University’s Summer Tours. These exclusive tours give you a peek behind the scenes at the Academy Building, P.J. Veth Building and Bibliotheca Thysiana: buildings with a long, rich history.

The consequences of social tendencies for the legislation and institutions in the fields of social security, the labor market policy and pension reform are examined in this multdisciplinary research program..

Is private law ready for the challenges of our time?

Professor Ewine van Dishoeck, together with an international team of colleagues, has written an overview of everything we know about water in interstellar clouds thanks to the Herschel space observatory. The article, published in the journal Astronomy & Astrophysics, summarizes existing knowledge and…

This February Metje Postma will stop teaching and retire. But she is not done with the discipline yet: she will finish her PhD and there are still five films on the shelf that she plans to complete.

2025 was a year to remember at our faculty. We celebrated our 450th anniversary, launched new degree programmes and welcomed many inspiring speakers, yet we also felt the weight of budget constraints. Our year in a nutshell:

On Friday 5 September, to mark our 450th anniversary we celebrated the opening of the faculty year together with the Leiden Revisited alumni event. Combining both annual events was a huge success, especially as staff brought along their family, partner or friends.

This week, the cooperation between the Zwerfinator and Leiden University was in the news because of loose labels on deposit bottles. NOS news reported that the Zwerfinator submitted an enforcement request to the Inspectorate. The Leiden Advocacy Project on Plastic (LAPP) is supporting litter waste expert…

Nederland en Europa liggen ver achter op de VS in de AI-markt. Beljaarts doet de oproep dat Nederland een supercomputer moet bouwen, om zich stevig te kunnen positioneren. Reijer Passchier, universitair docent Staatsrecht en hoogleraar Digitalisering aan de OU, waarschuwt in EenVandaag voor de dominantie…

This summer, the Universe is closer than ever. With the online astronomy summer programme Space in Your Living Room!, the Leiden Observatory brings astronauts and Leiden astronomers to the homes of children all across Europe.

This week, the cooperation between the Zwerfinator and Leiden University was in the news because of loose labels on deposit bottles. NOS news reported that the Zwerfinator submitted an enforcement request to the Inspectorate. The Leiden Advocacy Project on Plastic (LAPP) is supporting litter waste…

Recently, Prime Minister Dirk Schoof caused quite the stir in the political arena of The Hague following the release of policy documents on the asylum debate. This came ahead of a decision that had not yet been made. The question has since arisen as to whether it’s still possible for civil servants…

Door de totale anonimiteit van online servers is het erg lastig om cybercriminelen op te sporen. Dat moet anders, vindt Femke Halsema. Universitair docent Jan-Jaap Oerlemans en hoogleraar Law and Data Science Bart Custers spraken met de Volkskrant.

The Fritz Zwicky Prize 2022 for Astrophysics & Cosmology has been awarded to Prof. Ewine F. van Dishoeck for her pioneering, decades-long work in astrochemistry and molecular spectroscopy, as well as for her leadership within the astronomical community. The award was announced today by the European…

Astronomers led by Leiden astronomer Sebastiaan Haffert have directly imaged two planets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. While over a dozen exoplanets have been directly imaged, this is only the second multi-planet system to be p…

Our solar system probably evolved in the same way as most of the other planetary systems around us. This has been shown by German-Austrian-Dutch research on more than 870 planet-forming disks in the Orion cloud A. The five researchers, including three from the Leiden Observatory, published their findings…

An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have originated in the cold gas clouds from which the star and the disk formed. Thus,…

New ALMA observations show there is ordinary table salt in a not-so-ordinary location: 1,500 light-years from Earth in the disk surrounding a massive young star. Though salts have been found in the atmospheres of old, dying stars, this is the first time they have been seen around young stars in stellar…

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…

In 2011 Leiden University came into possession of the skeletons from a graveyard in Middenbeemster. But what could be done with all these bones and skulls? Well, the answer is: more than you might think. Since the excavation, it has been raining interesting scientific discoveries at the Faculty of Archaeology.…

In the late colonial Netherlands Indies, starting from 1892, homes were set up for the re-education of children. At first by private individuals, later by the government. Much later still, privately funded institutions existed alongside government-funded ones. Annelieke Dirks’ defence on 23 June 201…

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…

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

We have been working from home for over 9 weeks. How are the staff members of the Institute for History doing? Andrew Gawthorpe shares his experience below.

In the context of growing political polarisation, the spread of misinformation, and increases in incivility and intolerance, how can Twitter assess and improve the quality of its conversations? To address this question, an interdisciplinary team of researchers from Leiden University, Syracuse University,…

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

The Clinical Epidemiology department at the LUMC has set up a series of lectures for asylum seekers. The series has become a huge success.

Graphene, the ultra-thin wonder material just a single carbon atom in thickness, holds the promise of such impressive applications as wear-resistant, friction-free coatings. But first manufacturers have to be able to produce large sheets of graphene under precisely controlled conditions. Dirk van Baarle…

Leiden patriot Pieter Vreede fought for greater popular influence. Historian Dirk Alkemade reveals how this pioneer used radical means to shape Dutch democracy.

From a meaningless block of plastic to an advanced component that contributes to the energy transition. The technicians and scientists of our faculty think it out in detail and make it a reality. This special project shows that they need each other.

Kirsten Kanneworff and David Dechant defend their PhD research on quantum physics at Leiden University. Fundamental work with applications in location verification and the financial world.

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,…

The Panama Papers and Paradise Papers provide evidence that companies and individuals are evading tax on a large scale. Worldwide tax agreements can put a stop to this. But for the time being a treaty that will address the problem at its root is not in sight, in the opinion of legal expert Dirk Broekhuijsen.…

PhD candidate Agnes van Steen researched the history of the Leiden women’s rights movement (1860-1990) and found that the university produced many feminists.

The Hague Journal of Diplomacy (HJD) closes 2020 with a free publication on the impact of the corona crisis. Thirteen authors on four continents write about 'Diplomacy after Covid19'.

Urban green infrastructure has the ability to make make cities more sustainable. However, the exact implementation of green infrastructure and the choices that must be made during implementation, are still topic for discussion. In the Future Cities podcast, environmental scientist Joeri Morpurgo chats…

Elsevier Weekblad has chosen 30 Dutch talents under the age of 30. They include Leiden alumni Mátyás Bittenbinder (biology), Hielke Onnink, (Public Sector Management) and Baris Koca (law).