We always try to answer questions about the Old Observatory Leiden as well as possible. Choose the subject you have a question about from the dropdown menu below.

Almost all bacteria are enveloped by a cell wall that provides cellular protection.

For Leiden University’s operations, sustainability is an important topic, especially looking at the CO2-footprint, renewable energy and the greening of buildings.

The project 'Data use, online consumer needs, business strategies and regulatory response' aims to explore and examine the factors that impact upon the efficacy of information disclosure duties pertaining to customer data use in online business.

On this page you find useful links to cooperating universities, Dutch institutes and other interesting links to information related to Arabic & Islamic studies, Egyptian Archaeology, and learning Dutch.

General contact information of the Young Academy Leiden

Do you want to learn more about the programme? Or are you interested in a collaboration? Please do contact us.

The Centre for Computational Life Sciences

LAPP is open for volunteering students of the Leiden Law School. Students work alone or in teams on questions of our clients.

Would you like to invite Sustainable City Lab for a chat to discuss a sustainability issue, or to explore how we can work together? Or would you like to visit us on campus?

The International Institute of Air and Space Law, founded in 1985, collaborates with many world-class academic institutions.

The Sport Data Center (SDC) consists of the data science disciplines of Leiden University and Technical University Delft, combined with the sport science branches of the Amsterdam Institute for Sport Science and the Sport Engineering Institute of the Technical University of Delft.

The Young Academy Leiden (YAL) is a select group of young academics at Leiden University. Founded in early 2019, it serves as a platform to bring young, enthusiastic and driven early career (post-PhD) academics together.

There are a number of different people in the Faculty of Humanities who deal with aspects of diversity and inclusion. This web page has been developed to make it easier to find the contact details for the right person for you.

Healthy University Leiden aims to promote a working environment where staff and students can do their jobs responsibly, healthily and in positive surroundings, and where they can achieve their potential.

This page is currently only available in Dutch.

Read here about the Leiden University Green Office, the Green Office movement and meet our team.

Data Science

Here are some pointers if you like to join us as a student, PhD student, postdoc or guest. Vacancies are advertised at the university's general page, and sometimes also on this page. However, most PhD and postdoc positions are not formally advertised but awarded year round based on individual applic…

The LUCL Office coordinates the day-to-day running of the institute. It is responsible for handling general enquiries and can assist with all practical matters concerning LUCL and its staff.

Leiden University was founded in 1575 and is one of the leading international research universities in Europe.

The staff of the Europa Institute possess extensive expertise on European Union law and European Human Rights law generally. Current research focuses on five areas of particular relevance for European integration.

Het Empower your PhD-project is een universiteitsbreed project, geïnitieerd vanuit de Faculteit der Sociale Wetenschappen (FSW)

The LUCAS Office is housed in Arsenaalstraat 1 and staffed by Viola Stoop and Roelie Mol.

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

In Freedom on the Offensive, William Michael Schmidli illuminates how the Reagan administration's embrace of democracy promotion was a defining development in US foreign relations in the late twentieth century.

In dozens of study rooms, libraries and laboratories, passionate scientists – with the support of the donors of the Leiden University Fund – are working on a fundamental understanding of the world and the people around us. They make the unknown known and push the boundaries of existing fields of sci…

The Human Origins group at Leiden University studies the archaeology of hunter-gatherers, from the earliest stone tools in East Africa, more than three million years old, to the origin of sedentary societies towards the end of the last ice age.

Research

Leiden Law School is currently housed in two beautifully restored historic buildings located in the old centre of Leiden. We also have facilities for teaching and research at Campus Den Haag.

The Leiden University Centre for Islamic Thought and History aims to promote the study of Arabic and Islamic thought and history in a number of ways, both online and in person.

The section Developmental and Educational Psychology consists of more than 45 people, who are mainly involved in education and research.

Participating, expressing your ideas, asking questions, and giving feedback can be done in a variety of ways. It is important to make yourself heard.

Our department aims to educate academic professionals who are prepared for the future of law and organization.

Leiden University Centre for Linguistics (LUCL) is a reputable institute in the field of linguistics, offering excellent research and education opportunities covering a broad range of languages of the world.

Do you want to know more about LUC's bachelor’s programme and experience what it’s like to study in The Hague? Join one of our introductory activities!

All living creatures have to cope with environmental demands and threats that challenge their physical or emotional homeostasis.

The Center for Law and Digital Technologies (eLaw) was founded in 1985 and has a leading role in research and education on law and digital technologies.

The Leiden Institute of Advanced Computer Science (LIACS) is a centre of excellence for multidisciplinary research and education in computer science and artificial intelligence (AI).

The Master Honours Classes & Challenges are part of Leiden’s honours education for master’s students. While the Honours Academy is responsible for the practical organisation, the education is coordinated by teachers of all faculties.

The VVI seeks to develop and disseminate socio-legal knowledge and theory regarding the interaction between law, governance and society. More specifically, the Institute studies the emergence, functioning, and evolution of legal institutions.