Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…

Planet formation is a surprisingly homogeneous process that does not take place gradually from inside out, but that occurs everywhere at the same time in a proto-planetary disc, as Dave Lommen has discovered. He will obtain his doctorate this week based on his research into the dust around young stars…

In his report, Dutch cabinet negotiator Kim Putters proposes the formation of a ‘programme cabinet’ and an outline agreement. The four political parties involved have agreed on this form of cabinet, and Putters therefore appears to have succeeded in his mission. Wim Voermans, Professor of Constitutional…

Yannis Kyriakides, PhD student at Academy of Creative and Performing Arts , has received the prestigious International Rostrum for Composers award, in the category over 30 years, for his cello, video and electronics piece: Words and Song Without Words.

Emeritus professor of international law, Nico Schrijver, spoke on NPO Radio 1’s program Spraakmakers about the law of warfare and humanitarian law. He characterized the recent Israeli action that took place in Qatar as ‘brazen, because the attack affected not only Qatar and Hamas, but also the United…

Gedupeerden krijgen maar met mondjesmaat duidelijkheid over hun schadevergoeding in de toeslagenaffaire. Ymre Schuurmans, hoogleraar staats- en bestuursrecht, stelt dat het vooral misgaat door de complexiteit en onduidelijkheid over wie recht heeft op welke compensatie, zegt zij in de uitzending van…

The centre of our Galaxy is so dark and dense that it is almost impossible to observe what is inside. By catching the rare hypervelocity stars that are ejected from it, Elena Maria Rossi aims to unveil the mysterious environment around the supermassive black hole inside. But she’ll also be solving another…

Constant Hijzen, assistant professor at the Institute of Security and Global Affairs (ISGA), spoke about the Law on intelligence and security services in the NRC. In the column ‘Twistgesprek’ (dispute) of the NRC Hijzen has a written conversation with the director of Bits for Freedom, Hans de Zwart,…

In the last few weeks Armin Cuyvers was several times in the news on Brexit. He was a studio guest during the new years episode of Legal Affairs on BNR national radio and he was a studio guest in the news programme EenVandaag.

A publication in Nature Plants by a team of Leiden biologists has received national and international media attention. The researchers can have annuals flower multiple times thanks to a particular gene they discovered.

Statements made by Caroline van der Plas about nitrogen emissions and European law are incorrect: Armin Cuvyers on Dutch radio EenVandaag programme’s item ‘fact or fiction’.

After 25 years, December will finally see the launch of the long-awaited James Webb space telescope. Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, the telescope will also reveal many new secrets of the universe,…

For centuries, astronomers have studied the universe by collecting light signals. Since 2015, the confirmation of an important prediction of Einstein allows us to explore the universe in a new way: through gravitational wave radiation. Astronomy PhD candidate Valeriya Korol proposes to use these gravitational…

In the large gas clouds between the stars, chemical reactions take place under extreme conditions, giving rise to both small molecules, such as water and common salt, as well as large complex molecules that can serve as the building blocks of life. This is known as astrochemistry and it is something…

From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, explore our standout discoveries and most inspiring collaborations from the past year!

Dr. Miguel John Versluys (Archaeology) has been awarded a prestigious Vici grant for his project:

Physicists have studied the astrophysical neutrino signal as reported by the IceCube collaboration from a different angle with their ANTARES detector. The Milky Way centre was an obvious prime suspect to be a source, but this hypothesis is now only closer to debunked than confirmed. Publication in Physical…

Cosmologists have many possible models for the Universe, of which only one can be true. A new flowchart will eliminate some of them when two specific Universe features are accurately measured. Publication in Physical Review D on 7 November.

kiem grant: Investigating the anti-inflammatory potential of the PRG4 protein in preventing and alleviating rheumatoid arthritis

Which consumer groups post the greatest cost to public health and the planet through their food choices, and how can we use this fine-scale information to accelerate a sustainable dietary transition?

Can small molecule drugs restore the immune system’s ability to fight tuberculosis by boosting autophagy?

World-famous among astronomers, humble, and averse to conventions. On 23 April, the Dutch biography about Henk van de Hulst was published. Biographer Dirk van Delft: ‘This remarkable man deserved a biography.’

Residents of Bonaire believe the Dutch government should do more to combat climate change on their island. On their behalf, Greenpeace is taking the Dutch State to court. External PhD candidate Sjoerd Lopik discussed the case on Dutch Radio 1.

Een minderheidskabinet komt in Nederland nauwelijks voor. Dat ligt volgens Corné Smit, gastmedewerker staats- en bestuursrecht, die onlangs op dit onderwerp promoveerde, aan de diepgewortelde traditie van meerderheidskabinetten, zegt hij in EenVandaag.

Looking back on 2024, Elon Musk and his impact on the global stage, political developments in the Netherlands and the war in Ukraine come to mind. These and other topics were discussed in ‘De Jortcast’, a podcast hosted by Jort Kelder on Dutch radio offering ‘radio therapy against hypes and hysteria’.…

Het Centraal Orgaan opvang asielzoekers (COA) moet dwangsommen gaan betalen aan de gemeente Westerwolde bij overbezetting in Ter Apel. Wim Voermans, hoogleraar Staats- en Bestuursrecht, spreekt zich bij Sven op 1 uit tegen de maatregel: ‘Ze willen chaos creëren.’

Dat banken en de belastingdienst vanzelfsprekend voorrang hebben als schuldeiser bij faillissementen is achterhaald, concludeert Ruben van Uden, universitair docent en promovendus, in zijn proefschrift. Hij vertelt erover bij BNR: ‘Het is niet meer te rechtvaardigen.’

In Germany, the United States and even in Vietnam: all over the world, the Leiden discovery of the birth of two planets was shared. Astronomer Sebastiaan Haffert and his team were able to record multiple planets in the making for the first time and published their findings in Nature Astronomy. A unique…

Donald Trump's US election victory is causing major concerns in many countries, including Iran. Afshin Ellian, Professor of Jurisprudence, spoke about this on Dutch all-news radio station BNR: ‘Denying that they're worried is really just for show’.

The Dutch Tax and Customs Authority is planning to start enforcing income tax and contribution obligations again following a moratorium lasting several years. The tax authority is doing this in a move to combat sham self-employment; a dossier that continues to be a huge obstacle for the Dutch House…

Volgens hoogleraar staatsrecht Wim Voermans is een uitslag, waarbij twee of meer partijen exact gelijk eindigen in de Kamerverkiezingen, uniek en dat vraagt om een uiterst zorgvuldige aanpak, zegt hij in Sven op Radio 1.

Eleven talented Leiden researchers with several years of research experience have been awarded a Vidi subsidy to set up or expand their own line of research.

As a humanities researcher, it is not always easy to explain to other people why what you do is important. It is easy for people to see why searching a cure for cancer matters, but it is a bit harder to make clear why it is also important to study language, culture, and history. One of the things that…

On Sunday 29 October the annual open day of the Old Observatory will take place. During this day, people can visit the Old Observatory for free and enjoy the historic building.

After 25 years, this December will finally see the launch of the long-awaited James Webb space telescope (JWST). Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, but the telescope will also reveal many new secrets…

Stay tuned for updates on relevant media appearances of Ellen de Bruijn.

Martin van Hecke published an article in Nature, together with physicists from AMOLF and UvA. They have developed a metamaterial that folds itself up, even in multiple steps. Van Hecke appeared in the following media.

We increasingly look at international consortia to come up with scientific and technological advances that are needed to address global challenges in areas such as health, the environment and clean energy. However, organising these consortia involves unique challenges. To identify these challenges,…

To understand which groups turn against their government, you need to understand the political culture in which they grew up, what they expect from a ‘state’ and what alternatives there are. With its long interdisciplinary experience, ASCL is often considered to be a regional expertise centre. But this…

Mazatec chants and ancient Mesoamerican pictography

Democracy in Action (DiA) is a Horizon Europe-funded initiative exploring how grassroots movements, cultural spaces, and digital innovations can strengthen democratic participation. With a special focus on youth, women, ethnic minorities and night culture, we bring together researchers, grassroots movements,…

Earth and outer space have become increasingly intertwined environmentally, politically, and philosophically, as satellite constellations multiply, lunar activities expand, and aspirations for Mars and beyond gain momentum.

The combination of global questions and a wide range of local sources characterizes the Leiden University Institute for History.