Emotions play a key role in EU politics. This article examines how emotions influence the EU’s response to international crises and norm violations.

The Astronomy and Cosmology specialisation consists of 120 European Credit Transfer System (EC) points and offers advanced Astronomy and Physics courses and two research projects.

'Communal Dining in in the Roman West' explores why the practice of privately sponsored communal dining gained popularity in certain parts of the Western Roman Empire for almost 300 years.

By effectively integrating word-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.

The Astronomy and Science Based Business specialisation consists of 120 European Credit Transfer System (EC) points and includes a one-year astronomy component (60 - 80 EC) and a business component in the second year (40 - 60 EC).

On the occasion of the Women & Girls in Science Day, BBC Science Focus Magazine highlighted 6 prominent female chemists. Among them is Leiden professor Ewine van Dishoeck: 'Astrochemist investigating the building blocks of life'.

The Astronomy Research specialisation consists of 120 European Credit Transfer System (EC) points and includes a wide selection of Astronomy electives and two research projects.

Are you interested in taking up an extra challenge during your master’s programme? Have you thought about applying for our Summer School programme or are you interested in developing your personal leadership style?

The cannabinoid CB2 receptor (CB2R) represents a promising therapeutic target for various forms of tissue injury and inflammatory diseases. Although numerous compounds have been developed and widely used to target CB2R, their selectivity, molecular mode of action and pharmacokinetic properties have…

In Reframing the Diplomat Albertine Bloemendal offers a unique window onto the unofficial dimension of Cold War transatlantic relations by analyzing the diplomatic role of the Dutch Atlanticist Ernst van der Beugel as a government official and as a private diplomat.

Launched in early March, GlobalSCAPE is an EU-funded project seeking to understand the current state of science communication globally, especially in non-western countries. Through the Department of Science Communication & Society, Leiden University is one of the main partners of the project, which…

Promotor: Prof.dr. L.J. Slikkerveer

The Astronomy and Data Science specialisation consists of 120 European Credit Transfer System (EC) points and includes mandatory courses in Computer Sciences, a selection of electives in Astronomy and two research projects.

Do offshore windfarms affect the local biodiversity of the pelagic fish community and are fish deterred or attracted by sounds?

By effectively integrating word-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.

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.

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.

An Active Galactic Nucleus (AGN) is a highly luminous region at the center of a galaxy, powered by the accretion into a supermassive black hole and emitting energy from radio waves to gamma rays, often outshining the host galaxy.

Promotor: J.S. Kaastra Co-promotor: E. Constantini

We have conducted a full spectral line survey of the 3-13 micron region of two massive protostars, AFGL 2591 and AFGL 2136, for the first time at high spectral resolution.

We examine how soil-derived legacy effects of plants structure natural ecosystems, determine aboveground plant insect interactions, and how we can use soil legacy effects to restore degraded ecosystems.

On February 20th, Gulnaz Sibgatullina succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Gulnaz on this great result.

The Astronomy and Education specialisation consists of 120 European Credit Transfer System (EC) points and includes a one-year astronomy component and a teacher’s education component in the second year.

The Astronomy and Instrumentation specialisation consists of 120 European Credit Transfer System (EC) points and includes highly specialized instrumentation courses, a selection of advanced electives and two research projects.

In this project, the hypothesis that language contact crucially impacts the development of spatial grammar and phonology is investigated.

From the discovery of exoplanets to the hunt for extraterrestrial life. At the Astronomy Gala on 17 December in the concert hall in Leiden, astronomers looked back, but above all ahead. With King Willem-Alexander as guest of honour.

Simulations of galaxy formation provide much more information about galaxies than a telescope. Simulations have been improving significantly in recent years. Astronomer Evgenii Chaikin made such a significant contribution to this field that he graduated with honours on February 27th.

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

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

A festival that combines music and science, and a digital 'time machine' for science history: four Leiden projects that focus on science communication have been awarded a subsidy in the context of the National Science Agenda.

Majuka Tanabe defended her thesis on 17 June 2015

In this project, the hypothesis that language contact crucially impacts the development of spatial grammar and phonology is investigated.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

The United Nations Office for Disarmament Affairs (UNODA) has published the 2017 issue in their Civil Society and Disarmament series, titled Voluntary, Non-Binding Norms for Responsible State Behaviour in the Use of Information and Communications Technology: A Commentary. The series aims to provide…

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

A logical next step and a new challenge: Harold Linnartz is ready for his new position as Programme Director (PD) of the Leiden Observatory. He will follow up current PD Paul van der Werf on 1 October. 'The programme has grown tremendously. That will be a logistics tour de force.'

By integrating world-class scientific research and education, you will become a professional physicist with an internationally recognized degree.

By effectively integrating word-class scientific research and excellent business education, you will become a professional astronomer with an internationally recognized MSc degree prepared for technological business challenges.

By effectively integrating world-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.