The success of Dutch radio astronomy in the last century was largely due to Leiden astronomer Jan Hendrik Oort. He made astute use of circumstances in the post-war period. Historian Astrid Elbers' research focuses on this golden period.

A piece of corrugated rubber can function as a simple computer, displaying memory and displaying the ability to count to two. Leiden physicists describe the computing rubber in the journal PNAS. ‘Simple materials can process information, and we want to find the principles behind that.’

The online summer programme Space in Your Living Room by Leiden Observatory has won the first prize ‘Most Innovative Event’ of the Astronomy@Home Awards from the International Astronomical Union. In July and August 2020, participants could for example talk to real astronauts and imagine life forms in…

Nienke van der Marel has been awarded the New Horizons Prize in physics for her pioneering research on planet formation. This prize is given to young, promising researchers in physics or mathematics. The astronomer and her colleagues found the first observational evidence for 'dust traps' in disks around…

The Leiden Observatory was very pleased to welcome eight bachelor’s students from Beijing Normal University at 8 July for the BNU Astronomy Summer School. In two weeks’ time, the Summer School students followed an interactive programme in computational astrophysics. ‘It’s surprising how much you can…

As of April 1, physicist Dorothea Samtleben is the first female program leader of Nikhef, the National Institute for Subatomic Physics. Samtleben will lead the Neutrino Physics group there. ‘This is an important step for Nikhef when it comes to diversity.’

Astronomers from Leiden University have discovered that the star wind from a newborn star in the Orion Nebula prevents more stars from forming in the immediate vicinity. They made the discovery with data from the SOFIA observatory. This was announced by co-author Xander Tielens during a press conference…

For the first time, scientists have traced back a high-energy neutrino to its source in space. It was produced by a so-called blazar—a supermassive black hole. Researchers from neutrino detector IceCube report this in Science. ‘This is a milestone for neutrino science,’ says physicist Dorothea Samtleben…

Meticulous analysis of hundreds of photographic plates from the star J1407 between 1890 and 2007 show no stellar eclipses. Robin Mentel, a master student at Leiden University, could not detect eclipses of the star J1407 by a planet hypothesized to have giant rings, called J1407b. However, an eclipse…

Lecture

Various consortia in which Leiden University is represented are beginning interdisciplinary research, which will bring scientific and societal breakthroughs within reach. Knowledge institutions, government and private parties are working closely together on the projects.

The Grotius Centre Working Paper Series is an occasional series through which researchers in the Grotius Centre can publish the unedited versions of manuscripts that have been accepted for publication by journals and books.

Speech Prosody 2024 includes seven special sessions. When making a submission, authors are asked to indicate whether they want their paper to be considered for a special session. You can find descriptions of each below.

Lecture

Migraine can’t be diagnosed with a blood test, scan or physical examination. Language therefore plays a crucial role in its diagnosis. Neurologist Joost Haan has researched the relationship between language and migraine, and looked at how migraine is described in fiction. His PhD defence is on 22 Oc…

Nationalism is commonly regarded as posing a challenge to international stability and regional and global order more generally. Arguably, nationalism encourages narrowly defined and zero-sum security policies; it works against compromises and consensus; it undermines international trust and cooperation.…

Bachelor student Vera de Regt received the first prize in the Anthropology Photo Contest 'Street Life' with her photo 'Girlpower in USA river' of Tanzanian boys ánd girls passionately playing football together. On the festive award ceremony at the Faculty of Social and Behavioural Sciences, after a…

A vitamin D deficiency is often associated with smoggy English industrial cities during the Industrial Revolution, but research carried out on skeletons now suggests that the ‘English disease’ was also prevalent in rural areas of the Netherlands. Doctoral defence on 29 January.

Dennis Broeders, professor of global security and technology at ISGA (Institute of Security and Global Affairs), together with two partners, has been granted a major European project: EU Cyber Direct. Together with EU ISS and Carnegie Europe, ISGA forms a new consortium for 3 years with a total budget…

In recent years, the Walad Djifir from Chad found themselves in a turbulent environment due to the unrest in Nigeria, Libya and the Central African Republic. How did they adapt? Inge Butter explored their situation in her PhD thesis. PhD defence will take place on 2 July.

In our collective journey to bridge social, economic, and cultural inequality in society, we must al play a part, says Wilco van Dijk. Unfortunately, notes Carolien Rieffe, minority groups are often not included in this 'we.' This became a focal point of discussion during the fifth Psychology Connected…

Traces of the past remain hidden in rivers, lakes and seas. In his inaugural lecture Martijn Manders will explain why underwater archaeology is important to understanding our history.

The much-discussed documentary 'Cobblestone Stories' by American anthropologist Mark Neupert can be seen in Leiden's Trianon cinema on 23 April. In an interview published earlier on this site Neupert explained what makes Leiden so special for him. 'The idea is to show my American students that there…

Nadine Akkerman has received a subsidy of two million euros from the European Research Council (ERC) for research into 16th and 17th century English manuscripts. Akkerman: ‘Working with handwritten texts and unravelling their mysteries is one of my passions, and it’s especially rewarding when this work…

Democracy may lead to more deforestation in the tropics. So write environmental scientist Joeri Morpurgo and his colleagues in the prominent scientific journal Biological conservation. They found that competitive elections are associated with more loss of tropical rainforest than elections without competition.…

Yeast, alpacas, and antibodies. They may seem unrelated, but within the project of the Leiden iGEM students, they come together perfectly. For the international synthetic biology competition iGEM, the team is working on an innovative method to produce nanobodies—a special form of antibodies—using brewer’s…

An overview of awards and prizes granted to our staff and students in 2020, as well as special appointments at Leiden University and other institutions.

Evenement

Debate

You can make some astounding images using just a box with a hole. Inspired by the celebration of Leiden as the European City of Science, Professor Matthew Kenworthy left several pinhole cameras across the Observatory over the course of 2021. This is how the simplest devices may uncover the greatest…

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…

Research using the ALMA telescope by scientists including Leiden's John Tobin and Steven Bos has produced the first images of the water snow line within a protoplanetary disc. Publication in Nature on 14 July.

NWO has awarded eleven Leiden researchers a Vidi grant of 800,000 euros. The research subjects range from Cicero and muscle dystrophy to the archaeology of bogs.

Jean-Eric Paquet, a Director-General at the European Commission, visited Leiden University on 20 February. He was impressed by the researchers’ drive, the wide range of topics that they research and the strong collaboration with Leiden Bio Science Park.

In 2018, astronomer Jorryt Matthee won the C.J. Kok Jury Prize for the best dissertation of the Faculty of Science. He succeeded in finding a number of rare galaxies from the early Universe. One of them received the same initials as football player Cristiano Ronaldo: CR7.

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.

Vivian studies the Global Political Economy specialisation of the MA International Relations and is the coordinator of the Humanities Buddy Programme. Originally from Malaysia, she has been studying abroad in various places. At Leiden, she focuses her studies on illicit political economy and ensures…

Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.

Observations made with the ALMA telescope in Chile and ESA’s Rosetta mission, have detected the faint molecular fingerprint of methyl chloride in gas, a chemical commonly produced by industrial biological processes on Earth, around both an infant star and a comet. Methyl chloride, also known as Freon-40,…

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.’

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

Earlier this year, the public voted environmental scientist Paul Behrens Discoverer of the Year 2018. Behrens is an interdisciplinary scientist who wants to understand our impact on the planet. ‘Unfortunately, we are not doing enough. Huge changes are underway and we’re running out of time to avoid…

Leiden PhD researcher Karin Öberg is one of the 17 winners of the NASA Hubble Fellowship. When she has obtained her PhD this autumn she will move to the United States for three years to conduct post-doctoral research into the role of ice in star formation.

Leiden astronomer Xander Tielens has been awarded a Spinoza prize, the highest scientific prize in the Netherlands. Tielens is Professor in the Physics and Chemistry of Interstellar Space. He studies large and complex, often organic, molecules found in interstellar space. The Spinoza prize carries a…