The next generation of high-contrast imaging instruments on space-based observatories requires sophisticated wavefront sensing and control in addition to a high-performance coronagraph.

On 16 april 2020, Andrew Fink defended his thesis 'The Importance of Conspiracy Theory in Extremist Ideology and Propaganda'. The doctoral research was supervised by Prof. A. Ellian.

Discover the information activities for the MSc Political Theory: Legitimacy and Justice at Leiden University, including webinars, virtual open days, Q&A sessions and events for prospective students.

Is there a causal mechanism underlying the decision to attack another country when on the brink of war? If so, does this mechanism differ between regime-types? Political scientist Femke Bakker (Leiden University) addresses this question from a political psychological and comparative perspective and…

Check the admission requirements for the MSc Political Theory: Legitimacy and Justice at Leiden University — bachelor degree in (or related to) Political Science with sufficient relevant credits and, if needed, research‑methodology background.

How can we gain insights in the connection between teaching practices and theoretical elaborations of purposes of education?

While self-driving cars and autonomous weapon systems have received a great deal of attention in media and research, the general requirements of ethical life in today’s digitalizing reality have not been made sufficiently visible and evaluable.

Discover why Leiden University is the ideal place for the Political Theory: Legitimacy and Justice MSc — combining top-level political philosophy education, small-group seminars, and academic staff expertise.

Explore the extra challenge options for the MSc Political Theory: Legitimacy and Justice at Leiden University — including Honour’s Academy programmes, leadership training, and opportunities to deepen your research experience.

Prepare for your MSc Political Theory: Legitimacy and Justice at Leiden University with orientation activities, academic resources, visa guidance, student support and tips for arriving in the Netherlands.

The relevance of intentionality to the interpretation of Aristotle was first suggested by Brentano in his Psychology from an Empirical Standpoint. Here we take our starting point from Brentano and investigate how Brentano’s concept of intentionality is rooted in Aristotle.

Explore student life for the MSc Political Theory: Legitimacy and Justice at Leiden University, including student associations, events, academic community and living in Leiden and The Hague.

Explore the career possibilities after the MSc Political Theory: Legitimacy and Justice — pursue roles in academia, policy analysis, public debate, ethics consultancy, or further studies (PhD).

Check the application deadlines for the MSc Political Theory: Legitimacy and Justice at Leiden University — visa / residence permit and non‑visa deadlines for September and February intakes.

Find out which documents you need to apply for the MSc Political Theory: Legitimacy and Justice at Leiden University, including diplomas, transcripts, CV, motivation letter and references.

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

On 12 mei 2020, Darryl Robinson defended 'Exploring Justice in Extreme Cases: Criminal Law Theory and International Criminal Law'. The doctoral research was supervised by Prof. C. Stahn.

The linguistic project constitutes the connection between the two other subprojects. It consists of two parts.

'Politics of Withdrawal' considers the significance of practices and theories of withdrawal for radical thinking today.

Political protest is often at least partially about the question of legitimacy. How can we distinguish whether a regime is legitimate, or merely purports to be so?

View tuition fee information for the MSc Political Theory: Legitimacy and Justice at Leiden University, including how fees vary by nationality, residency status and programme category.

The first of the two volumes of this co-authored study has just been published by Metzler. The study explores the history of the concept ‘barbarism’ from the 18th century to the present and illuminates its foundational role in modern European and Western identity.

Bernini and Pallavicino, the artist and the Jesuit cardinal, are closely related figures at the papal courts of Urban VIII and Alexander VII, at which Bernini was the principal artist. The analysis of Pallavicino's writings offers a new perspective on Bernini's art and artistry and allow us to understand…

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Learn how to apply for the Master's programme Political Theory: Legitimacy and Justice at Leiden University with step-by-step application instructions, document submission via Studielink, and next steps after applying.

On Thursday 29 January 2026 Uğur Derin successfully defended a doctoral thesis and graduated.

Together with two other authors, Jaroslaw Kantorowicz from ISGA investigates the susceptibility to believing in misinformation.

Classical statistical methods, such as p-values, are difficult for researchers to apply correctly. They for example do not allow drawing conclusions from a study early, or for extending a study with extra research groups that want to make their data available later.

The central subject of this dissertation is the influence of Fichte’s theory of self-consciousness on Søren Kierkegaard's philosophical notion of the self in the way Kierkegaard describes the self in his philosophy in the writing 'The Sickness unto Death' (1849). The main question this dissertation…

On 23 October 2019, Yoram Stein defended his thesis 'Spinoza's Theory of Religion: The Importance of Religion in Spinoza's Thought and Its Implications for State and Society'. The doctoral research was supervised by Prof. P.B. Cliteur and Prof. A.A.M. Kinneging.

On 7 September, Francesc Claret Traid defended the thesis 'On the nature of the right to resist: a rights-based theory of the ius resistendi in liberal democracies'. The doctoral research was supervised by Afshin Ellian and Gelijn Molier.

This thesis investigates durational aspects of the Italian mobile diphthongs with respect to other rising diphthongs and monophthongs and it shows to what extent the monophthong/diphthong alternation still occurs in contemporary Italian.

In this thesis we construct an extension associated with the Furstenberg compactification of symmetric space of noncompact type. From this extension we get a cycle in equivariant KK-theory representing the extension. The construction of the extension and the corresponding cycle is a generalization of…

The book offers different theoretical perspectives to help examine the process of public sector reform. In addition it gives an overview of the major trends in the core areas of the functioning of the public sector.

This thesis is is made of three parts. The first part describes a generalization of the Chabauty's method, that can be used to determine the rational points of a curve such that s+g>r+1, where g is the genusof the curve, r is the rank of the Mordell-Weil group of the jacobian of the curve and s is…

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This dissertation focuses on questions about the purposes of education and what it means to be educated. These questions are relevant across time, as the answers to these questions are always to some extent related to contemporary society.