Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

Physicist Christopher Berg Smiet, who recently obtained his PhD in Leiden, has been awarded an NWO Rubicon. The grant allows him to conduct postdoctoral research for two years at the Princeton Plasma Physics Laboratory (PPPL) in the United States.

The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.

The Leiden Observatory is starting a crowdfunding campaign to raise enough money to construct a new telescope.

The LLRC has collaborated on developing the communicative tasks for the Leiden Learner Corpus (LLC).

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

Staring into the clouds hoping for a glimpse of the sun, cheering in encouragement, video recordings: there was no shortage of things to do at the Leiden Observatory. More than 600 visitors witnessed the last, almost complete solar eclipse of the decade..

The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

ALMA has observed stars like the Sun at a very early stage in their formation and found traces of methyl isocyanate - a chemical building block of life. This is the first ever detection of this prebiotic molecule towards solar-type protostars, the sort from which our Solar System evolved. The discovery…

Leiden University has partnerships in the local region, in the Netherlands, in Europe and with countries on almost all the world's continents. Students and researchers benefit from these partnerships, but society is also a beneficiary, says Rector Carel Stolker.

Knowledge and culture subproject 4:

Africa has a population of 1.5 billion. In 30 years’ time, this will be 2.5 billion. The continent’s impact on the global economy, but also on the environment, will therefore increase drastically. Researchers from the African Studies Centre Leiden (ASCL) have been aware for decades of the crucial role…

Asim Zubcevic defended his thesis on 11 November 2015

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

As South Korean president Moon Jae-in prepares to leave office, North Korean leader Kim Jong Un has thanked him for trying to improve relations. Assistant Professor Christopher Green explains in the Calgary Sun what impact North Korea's gesture of goodwill might have.

Thousands of first-year students and hundreds of mentors kicked off the EL CID on Monday morning. This year for the first time, the introduction week of Leiden University and Leiden University of Applied Sciences was also open for students of Regional Training Centre mboRijnland and the Leiden Instrument…

Have you made up your mind and decided to pursue the BSc Security Stuides at Leiden University? First, check the admission requirements.

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Experimental research

From Great-Britain to the United States and from Australia to South Africa: people around the whole world speak and write English. In Leiden you will broaden your knowledge of the English language and the rich Literature and culture of the global English world on academic level.

First set up in 2015, the Language Learner Corpus (LLC) project collected language data of over 150 language students. We have now launched new communicative tasks to collect longitudinal data of language learners at Leiden University.

On the 16th of May, Qing Yang successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Qing on this achievement!

Working for a top faculty? Discover the vacancies at the Faculty of Science and apply immediately.

The Old Observatory has a rich history. On this page you will find a short version of the history that took place in the observatory.

Across cultures, parents help their children master the social and linguistic codes needed in adult life. Recent research on language socialization found important cross-cultural differences, pointing out the need for more diversity for a full understanding of this process. Deaf communities form…

Leiden University has participated in an international study carried out by the CARMENES consortium, which has discovered two small, terrestrial planets around Teegarden’s Star. The planets have masses similar to Earth and their temperatures could be mild enough to sustain liquid water on their surf…

For Humans of Psychology, students and staff will be put into the spotlight. At our institute prizes are won, exiting research is conducted, knowledge is harnessed, public meeting are organised and open science is highlighted. Take a look behind the scenes.

On dinsdag 26 juni 2018, Linlin Sun defended her doctoral thesis ‘International Environmental Obligations and Liabilities in Deep Seabed Mining’. The doctoral research was supervised by Prof. dr. N.J. Schrijver en Prof. dr. E.C.P.D.C. De Brabandere.

The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.

Research project ‘Quantification, Administrative Capacity, and Democracy (QUAD)’ has a vacancy for a postdoc.

The MOOC Terrorism and Counterterrorism: Comparing Theory & Practice was one of the first MOOCs of Leiden University to go live back in September 2013. More than three years have passed and the MOOC has attracted over 100,000 people coming from more than 100 countries.

This study explores regional variation in the use of utterance-final particles by analyzing spoken Taiwan Mandarin data recorded from spontaneous conversations.

Nowadays, most Europeans speak a language belonging to the Indo-European language family. However, very different languages were spoken on our continent before the arrival of the Indo-Europeans. The EUROLITHIC project tries to find answers to the question which languages these were and where they came…

The Iraqi archaeological site of Nimrud was recently recaptured from IS. The site has been severely damaged. The question now is, what to do with it? Should it be restored? Bleda Düring spoke with Trouw about this complex issue.

By documenting lexical and morpho-syntactic patterns among P’urhepecha speakers in Mexico and the US diaspora, this project will investigate the sources of language variation. The ensuing online dialect atlas will serve as an online resource for speakers, learners and researchers of the language.

A new special issue on translation and the cultural Cold War sheds light on the understudied and yet important role of translation in cultural transfer.

Bordering Up: Regulating Mobility Through Passes, Walls and Guards