Scientists have detected a neutrino with the highest energy ever measured. Leiden physicists Maarten de Jong and Dorothea Samtleben were involved in this project, which was widely covered in newspapers and online media last week.

The James Webb Space Telescope has found evidence of carbon dioxide (CO₂) in the atmosphere of a giant planet 700 light years away. This result provides insight into the composition and formation of this gas giant and shows what James Webb is capable of. The research by the international group of astronomers,…

Environmental challenges such as plastic pollution and biodiversity loss require extensive monitoring. Citizen science, in which members of the public participate in scientific research, has therefore become an important approach in environmental science.

An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

Physicists, including Leiden researcher, Sanli Faes, have devised a new technique for studying processes at microscale rapidly and extremely precisely. This new method will make it easier to develop antiviral medication. And it doesn’t stop there. Publication in ACS Nano.

Is it possible to diagnose diseases using molecular switches? The new international consortium LogicLab will address this question. Leiden chemist Sylvestre Bonnet and Leiden pharmacologist Thomas Hankemeier are involved in the project. LogicLab will run for four years and will receive over 3.5 million…

Transport inspectorates are looking for novel methods to identify dangerous behavior, ultimately to reduce risks associated to the movements of people and goods. We explore a data-driven approach to arrive at smart inspections of vehicles.

For many years, scientists have observed a correlation between Alzheimer’s disease and a surplus of iron in the brain. However, a causal link between the two has not been proven yet. We lack knowledge concerning the specific form of iron that is involved in the development of neurodegenerative diseases.…

The work done during this PhD research, aims to investigate the effect of tidal heatingin the observability of extra-solar satellites around exoplanets.

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…

Astronomers from Leiden Observatory have developed a new method to find distant quasars and better distinguish them from other objects that look like them, using machine learning techniques. The research result has been accepted for publication in the journal Astronomy & Astrophysics. It is the last…

Promotor: Prof.dr. J.N. Kok, Co-promotor: Dr. A.J. Knobbe

Promotor: A.W. van der Vaart

In the Netherlands, 1.55 million people suffer from cardiovascular diseases. Yet, acute cardiovascular events, such as a heart attack or stroke, often occur unexpectedly. That is because many people do not know they are at risk for such an event. Immunological researcher Amanda Foks and her colleagues…

As a professor, Natasha Appelman-Dijkstra understands better than anyone how important it is to recognise bone and mineral conditions at an early stage. She emphasises the importance of flexibility and collaboration for better care, groundbreaking research and strong education.

By measuring proteins in tears, ophthalmologists can more easily diagnose dry eyes (Dry Eye Disease). Peter Raus, a Belgian ophthalmologist and PhD student at the Institute of Biology Leiden, developed a new method for protein determination in tear fluid. The technique is also promising for the early…

Helping industry to spot dangerous and climate-harming gas leaks faster, cheaper, and more reliably than today’s tools: that's what Leiden University and BigCircle Ventures set out do in a new spin-off company.

Researchers at the Faculty of Science work at the frontiers of knowledge every day, tackling today’s major societal challenges. Their work is recognised through grants, prizes and other awards. We highlight some of these achievements below.

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.

In this work, we attempt to answer the question:

A Leiden-Delft-Erasmus research team has been awarded a LDE Global Support Grant to develop reusable algorithms in the remote detection of non-orthogonal architectural features, taking place in the archaeological context of the northern extremities of the Andean, part of the Istmo-Colombian Area.

Physicists propose the existence of sterile neutrinos that would explain three big mysteries in nature. To actually find them in particle accelerators, researchers need to know how they are produced and how they decay. PhD candidate Kyrylo Bondarenko has made predictions about this, which are currently…

Rembrandt & Leiden University: The Bigger Picture commemorates the 444th anniversary of Leiden University and the 2019 Rembrandt Year. Our special thanks go to Germanisches Nationalmuseum (Nuremberg), The Leiden Collection (New York), Museum De Lakenhal (Leiden), Mauritshuis (The Hague), Rijksmuseum/Musée…

Currently the focus of the project is the development of a tool that utilizes dimensionality reduction techniques in order to analyze and interpret the lexical and phonological variation between different sign languages. Additionally, the application of deep learning techniques for the extraction of…

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Sonic Modernities situates Southeast Asian popular music in specific socio-historical settings, hoping that a focus on popular culture and history may shed light on how some people in a particular part of the world have been witnessing the emergence of all things modern.

The members of Young Academy Leiden do research on a large variety of topics. In our first (and perhaps only) LEGO ‘show-us-what-you-do’ challenge, they all made a short movie on their own research, using only LEGO. Watch their movies here.

The Passion in Profession series features researchers who are specialised in Islamic, Middle Eastern and Central Asian studies. With the series, LUCIS aims to show what inspires them in their work by highlighting an object or concept that they feel passionate about.

Prof.dr. Annelou van Gijn has obtained a Marie Curie subsidy for research on wetland activity patterns in Mesolithic Northwest Europe. This funding has been used to employ the researcher dr. Aimée Little. The project will commence in November 2011.

Astronomers at ASTRON and Leiden University have used the LOFAR radio telescope to discover a 'brown dwarf' – a faint object more massive than Jupiter, but significantly less massive than the Sun. The discovery of the object dubbed Elegast, opens up a new path that uses radio telescopes to discover…

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…

Leading computer scientists from a variety of fields share their expertise and insights. Dive into the minds of these researchers and learn about real-world applications, the future of AI and related technologies and cutting-edge research. From chatbots to cybersecurity, from quantum to children's stories,…

An environmental and palaeo-economic reconstruction.

PhD defence

Since the early 1990s, one can isolate the optical signal of a single molecule and single-molecule spectroscopy has quickly grown into an important research field.

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

Promotor: J.S. Kaastra Co-promotor: E. Constantini

Research at the SBC group is comprised of the following research themes:

As an alternative to the diving board shaped force sensor, we are now developing a magnetically levitated small superconducting particle – or ‘Lead Zeppelin'' – as our mechanical resonator. We explore routes towards detection of gravity between small objects.

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

Exoplanets close in to their host star receive high levels of extreme ultraviolet (EUV) irradiation, capable of heating and ultimately driving the hydrodynamic escape of their atmospheres.

This thesis applies data mining in commercial settings in the telecommunications industry.

The topic of Historical Linguistics and Philology at LUCL is language change in its broadest sense.