When you apply for admission, you’ll be asked to submit several documents.

Our programmes are known for our scientifically based education and for our open atmosphere.

Our programmes are known for our scientifically based education and for our open atmosphere.

When you apply for admission, you’ll be asked to submit several documents.

Are you interested in taking up an extra challenge during your master’s programme? Have you thought about applying for the World Teachers Programme or are you interested in developing your personal leadership style?

Leiden Professor of Astronomy Mike Garrett is searching for signs of extraterrestrial intelligence. In his Kaiser lecture on 23 April he will discuss how far science has progressed in this quest.

Many researchers of the Faculty of Science are members of a research school related to their area of expertise. Research schools aim at collaboration of researchers from different faculties in the same university (interfaculty schools) or in different universities (interuniversity schools).

Leiden Observatory provides a dynamic, international environment for work and study. Established in 1633, the institute has a very rich tradition. The famous Old Leiden Observatory is the oldest operating university observatory in the world. At Leiden Observatory we carry out world class research and…

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Leiden Observatory is managed by its Directorate, with assistance from a number of Management Teams, an Institute Council, and an Advisory Board. The Secretariat, the Education Office and the Computer Support Group provide support for its research and educational tasks.

On this section of the website you can find more information about the Old Observatory and the current astronomy research institute.

Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.

The Leids Astronomisch Dispuut F. Kaiser is an association dedicated to the students who study astronomy in Leiden. In addition, they are also very involved in the public activities in the Old Observatory and help with the development and implementation of other projects in the building.

SRON Netherlands Institute for Space Research is moving. In 2021, the Utrecht branch of the institute will be located in South-Holland. Leiden professor Paul van der Werf sees the move as a great enrichment: ‘It will all be much easier when SRON is located here behind us in the parking lot two years…

Educational programme Universe Awareness (UNAWE) is one of HundrED's 100 Global Inspiring Innovations in Education. This was announced on 4 October 2017 at the HundrED Innovation Summit.

You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start as you embark on your studies at Leiden University.

Collaborators and advisors of the Plant BioDynamics Laboratory

Are you interested in combining your master programme with the Science Communication and Society specialisation? Learn more and watch the introduction video.

Are you interested in combining your Science master programme with the Education specialisation? Learn more and watch the introduction video.

Combine research in Computer Science with different aspects of business studies and learn how to build bridges between science and business.

The LOFAR e-infrastructure group is responsible for deploying and maintaining LOFAR processing on distributed e-infrastructure. A co-operation between SURFsara, Leiden University and ASTRON, the group develops software to integrate the LOFAR stack with processing pipelines. Our software can schedule…

The Old Observatory offers various options for visits from schools. Besides our tours, we also offer special workshops for schools.

The Computer Science and SCS master specialisation gives you the opportunity to combine fundamental research in computer science with different aspects of science communication.

The Computer Science and Education master specialisation gives you the opportunity to combine computer science research with an excellent education in becoming a teacher.

The Old Obervatory Leiden is one of the partners of the local learning ecosystem ‘Verwonder om de Hoek’, an educational platform from Leiden that lets school children and families wonder about the world of Nature, Science, Technology and Sustainability. On this page you will find the educational programmes…

‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…

These are the staff members of the Leiden - Latin America and the Caribbean Centre

"De Leidsche Flesch" is the study association for Physics, Astronomy, Mathematics and Computer Science students. This includes Media Technology students

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Are you interested in combining your Science master programme with the Business Studies specialisation? Learn more and watch the introduction video.

The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…

After 25 years, this December will finally see the launch of the long-awaited James Webb space telescope (JWST). Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, but the telescope will also reveal many new secrets…

Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch higher-education qualifications.

Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch higher-education qualifications.

Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch higher-education qualifications.

Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch higher-education qualifications.

Cooperation on education with China stimulates innovation and brings a different perspective and new content to classrooms.

Research at Leiden Observatory spans the full width of modern astrophysical enquiry. It is based on observation, theory, simulation, and experiment. Two broad clusters characterize the ongoing research. Within each theme, researchers carry out their personal and specialized research programme. The two…

NASA’s telescope SOFIA has provided a new glimpse of the chemistry in the inner region surrounding massive young stars where future planets could begin to form. Leiden PhD candidate Andrew Barr writes about it in the Astrophysical Journal. The scientists found massive quantities of water and organic…

Universe Awareness (UNAWE), an international programme that inspires children from the age of four to twelve with our wonderful cosmos, exists ten years.

Every month there is an opportunity to visit the Old Observatory in the evening. These open evenings consist of a lecture followed by a visit to the telescopes in the building.

Astronomer and Marxist Anton Pannekoek was a remarkable figure. This book aims to study the connections between his life as a socialist theorist and as a pioneering scientist through the prism of Pannekoek's biography.

Jos Schaeken has just published a book entitled 'Stemmen op berkenbast. Berichten uit middeleeuws Rusland: dagelijks leven en communicatie'.

In maart 2024 is het wetenschappelijk onderzoek naar de versterking van de verantwoordelijkheid van gecontroleerde entiteiten zelf rondom de accountantscontrole en de jaarverslaggeving uitgebracht. Dit boek bevat de uitwerking van een onderzoek voor het ministerie van Financiën opgesteld door de Afdeling…

The Dutch Black Holes Consortium receives 4.9 million euros from NWO for unravelling the mysteries of black holes and other mysteries of the universe. The Astronomy and Society group at Leiden Observatory is affiliated to use the leading research to introduce people of all ages and background, and children…

Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.

Two Leiden astronomers will receive the prestigious IAU PhD Prize. Both Jorryt Mathee and Niels Ligterink of the Leiden Observatory won a prize. Scientific director Huub Röttgering: We are proud that this year two of our PhD students receive an IAU prize for the best thesis in their field of researc…