Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

A step-by-step approach to building confidence in anxiety-prone young children.

LIAS welcomes Visiting PhD Candidates and Visiting Researchers (post-PhD) from around the world who are interested in working with LIAS scholars and/or making use of the Leiden University Library’s holdings in Middle Eastern and Asian Studies for their research. Information about the application procedure…

We welcome visiting scholars whose research aligns with our diverse areas of expertise.

The International Institute of Air and Space Law (IIASL) welcomes visiting researchers who would like to spend time with us furthering their (PhD) research. As a visiting researcher, you can make use of our extensive library, our digital resources and the expertise of the Law School’s institutes.

Leiden Law School welcomes visiting researchers who would like to spend time with us furthering their (PhD) research.

Leiden Law School welcomes visiting researchers who would like to spend time with us furthering their (PhD) research.

Leiden University has much to offer, so why not come and visit? We’d like to meet you.

Physicist Christopher Berg Smiet, who recently obtained his PhD in Leiden, has been awarded an NWO Rubicon. The grant allows him to conduct postdoctoral research for two years at the Princeton Plasma Physics Laboratory (PPPL) in the United States.

The Leiden University Centre for Linguistics (LUCL) welcomes visiting researchers from outside Leiden University that wish to conduct research at the institute.

Together we can make science open. Find the next step that fits your journey here.

The Visiting Scholar Scheme at the Institute of Security and Global Affairs welcomes applicants from early career to professors to join us for a maximum period of 4 months in The Hague.

Since 1991, visiting professors from Austria have come to Leiden University each spring semester to teach in their areas of expertise. Their fields alternate between history, music, art, and literature, often focusing on 19th- and 20th-century themes. They typically offer both a lecture course and a…

Leiden University regularly welcomes members of the Royal Family to attend opening ceremonies, lectures, presentations and unveilings of works of art.

The Grotius Centre unfortunately is not in a position to offer visiting fellowships or research positions, with the exception of visiting researchers within the framework of formal partnerships, such as the League of European Research Universities (LERU), or within the framework of common research p…

Leiden University College welcomes researchers at all levels who wish to spend some time at our institution for a research project.

The Leiden Observatory is starting a crowdfunding campaign to raise enough money to construct a new telescope.

When you have finished your dissertation, it is time to prepare for the defence procedure.

Every semester, LUCIS invites a scholar to Leiden to provide a lecture series on a topic of their choice. With these lectures, we aim to present state-of-the-art research in Islamic studies to the Leiden academic community and beyond, and to offer students and junior researchers the opportunity to get…

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

The Old Observatory is still used intensively as a university building. Yet there is still plenty to see and experience in this beautiful monument. Find out what the possibilities are here.

The Institute of Criminal Law and Criminology is committed to international cooperation and exchange.

Getting started with active learning & teaching can be as simple as assessing on what is already accomplished. Here are some practical courses of action to begin experimenting with active learning, whether you are a teacher or responsible for the spaces.

Staring into the clouds hoping for a glimpse of the sun, cheering in encouragement, video recordings: there was no shortage of things to do at the Leiden Observatory. More than 600 visitors witnessed the last, almost complete solar eclipse of the decade..

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.

Steps to take if you already have a Dutch residence permit and are joining Leiden University.

Steps to take if you need residence permit only, and not a visa, for your upcoming studies.

Steps to take if you need a student visa for your upcoming studies.

On 26 May 2026, the Leiden Institute of Chemistry (LIC) hosted a delegation of PhD students from The University of Kansas. They were visiting our university and also paid a visit to the institute.

ALMA has observed stars like the Sun at a very early stage in their formation and found traces of methyl isocyanate - a chemical building block of life. This is the first ever detection of this prebiotic molecule towards solar-type protostars, the sort from which our Solar System evolved. The discovery…

Visiting Researchers at the Leiden University Institute for History

As a university, we offer you the best education you can get. Professors, tutors and lecturers are ready to teach and guide you. But we do more than that. Of course, studying is your own responsibility, but we are happy to help if you need support. You decide what and when; online or on campus. These…

Leiden University has partnerships in the local region, in the Netherlands, in Europe and with countries on almost all the world's continents. Students and researchers benefit from these partnerships, but society is also a beneficiary, says Rector Carel Stolker.

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

When you have finished your dissertation, it is time to prepare for the defence procedure.

Applications can be submitted by doctoral researchers (at least in the second year of their studies during the proppsed stay), postdocotral researchers, and senior researchers. The research should thematically align with one of the research themes or projects conducted by the academic staf of the Department…

This thesis highlights the significant role of surface geometry and oxidation state in determining CO adsorption behavior on copper surfaces.