Four different astronomical societies are active in the Old Observatory. We are very proud of the commitment these associations show to organize activities.

During the CSM programme, you will have interactive guest lectures with professionals active in the security domain. The guest lecturers will speak about their career (development) and how they reached their goals.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Leiden University offers you several services related to career orientation and job application skills.

Find out how to apply for Law and Society (MSc)  at Leiden University by following our step-by-step guide. 

Find out what it is like to study at the Faculty of Law. Watch the video below to get an impression of our facilities and our faculty in Leiden and The Hague. Be sure to also take part in our online and on-campus information sessions!

On the 30th of September Christine Ketel successfully defended a doctoral thesis and graduated.

Explore the profound impact of silences on social, political, and interpersonal dynamics in complex historical contexts. This collection of essays challenges assumptions and draws on diverse academic fields to reveal the pervasive nature of silence in human existence.

The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.

A British English Pronunciation Course Book

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Leiden University offers you several services related to career orientation and job application skills.

Find out what it's like to study at Leiden Law School. Watch the video below to get an impression of our facilities and our faculty in Leiden and The Hague. Be sure to also take part in our online and on-campus information sessions!

Information activities MSc in Cultural Anthropology and Development Sociology

If you have a question, there are various ways to get in touch with us.

Leiden University offers you several services related to career orientation and job application skills.

Leiden is a real student city and has everything you’ll need to turn your time as a student into the time of your life.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Find out what it is like to study at the Faculty of Law. Watch the video below to get an impression of our facilities and our faculty in Leiden and The Hague. Be sure to also take part in our online and on-campus information sessions!

Are you a curious and enthusiastic student, and do you want to do more besides your regular studies? If so, Honours education might be something for you!

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

The programme consists of 60 EC, to be completed in one year.

Leiden University offers you several services related to career orientation and job application skills.

Discover why Leiden University is the best place for the MSc Democracy and Representation: renowned faculty, innovative curriculum, small seminars, and a strong research environment.

Discover why Leiden University is the ideal place for the MSc Dutch Politics: a broad political science department, expert faculty, small-group teaching, and a vibrant student city.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Leiden is a real student city and has everything you’ll need to turn your time as a student into the time of your life.

Do you have any questions about the Security Studies programme? Please contact us!

Clara ten Hacken defended her thesis on 16 December 2015

The theoretical explanation of cosmic acceleration is nowadays one of the biggest puzzles in cosmology.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

This programme is aimed at students who have a strong interest in programming and computer science, as well as an interest in the cognitive psychology and artificial intelligence.

Are you still unsure which master's programme suits you best? Why not dive deeper into the programmes, experience lectures and ask all your questions to teachers and current students? Try one of our extra information activities.

This dissertation presents a grammar of Khwarshi, a Nakh-Daghestanian language.

Are there any differences in gaze behavior between high and low socially anxious individuals? What factors influence the relation between social anxiety and gaze behavior?

Developing new methods for performing improvised music

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

Promotor: Prof.dr. J. den Hertog

This thesis describes a study from both a theoreticaL and an experimental point of view.

In some condensed matter systems, such as the surface of a 3D topological insulator, the electrons are effectively massless and we must necessarily use the massless Dirac equation to describe them.

Implementation of the new sound synthesis and analysis method in music composition.

The prohibition of anti-competitive unilateral conduct by firms with market power is not absolute, but allows for derogation.

The aim of the research presented in this thesis was to develop new methods forchallenging systems in liquid-state NMR using paramagnetic effects generated by thetwo-armed probe CLaNP-5.

In the first part, we introduce a new condition, called toric-additivity, on a family of abelian varieties degenerating to a semi-abelian scheme over a normal crossing divisor.

Starting a PhD can be both exciting and overwhelming. To help you get off to a smooth start, you can find a few practical resources on this page.

Social relationships of students are important. Especially for students with problem behavior. How can a teacher support students in their social relationships via their own interactions with students? A lot, as is shown by a meta-analyses of Hinke Endedijk. She assessed almost 300 studies about teacher-student…

This PhD thesis concerns the topic of arithmetic geometry. We address three different questions and each of the questions in some way is about counting how big some set is or can be.

Part of ‘Moralising Misfortune: A Comparative Anthropology of Commercial Insurance’, an ERC Consolidator project of Erik Bähre.

An interdisciplinary collection of the best international scholarship on Muslim youth.