You’re about to start your Astronomy Pre-Master's programme in Leiden. Make sure you are well prepared and get your studies off to a good start!

How does astronomy benefit you? The new single-episode podcast Cosmic Perspectives explores the impact of Dutch astronomy on society: from building positive international relationships to the transfer of life-changing technology.

Michiel Hogerheijde has been appointed temporary programme director of the Astronomy master's programme from 1 January to 1 September 2024. He takes over the duties of Harold Linnartz, who unexpectedly passed away at the end of December. Hogerheijde combines the position with his duties as programme…

The board of the Pastoor Schmeits Prize for Astronomy Foundation has awarded the Pastoor Schmeits Prize 2025 to two individuals: Yamila Miguel, affiliated to the Leiden Observatory, Leiden University and SRON, and to Else Starkenburg, affiliated to the Kapteyn Institute, University of Groningen. The…

ASTRON en de Universiteit Leiden beginnen samen een nieuwe leerstoel over sterrenkunde en AI. Bijzonder hoogleraar Joeri van Leeuwen gaat deze positie vullen.

From telescopes to science fiction: in just one semester, students with no background in physics or astronomy get to explore the universe. The first group of students started last month in the new minor Our Universe.

A group of united astronomers have successfully convinced Europe’s leading astronomy journal Astronomy & Astrophysics to institute a name change policy for transgender people and others. ‘It’s really frustrating that such a large organisation needed an initiative from outside to adopt a more inclusive…

Leiden astronomy Master's student Arend Moerman has received an A+ for his thesis research on the simulation of chaotic interactions of three black holes. The simulations, which he carried out together with his Leiden and Oxford colleagues, show that lighter black holes tend to slingshot each other…

During her master's thesis, Nashanty Brunken (24) worked in a team with five other women. With this female team, they discovered the largest molecule so far identified in a disc. 'I have learned so much and because we are all women, it is incredibly empowering. It's very cool to see how far we've come…

Lecture, Astronomy on Tap

Lecture, Astronomy on Tap

Astronomer Joseph Callingham and his team have observed for the first time a clear signal from a giant burst from a star outside our solar system. This would have a devastating impact on any unfortunate planet orbiting the star.

Lecture, Astronomy on Tap

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…

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.

When deciding what to study you undoubtedly read a lot of information about your study programme. Leiden University employs various systems to provide information about programmes and courses and to facilitate communication between lecturers and students.

Some bachelor's programmes help you monitor your own academic progress by assisting you in drawing up a study plan at the end of your first year.

An internship or research project abroad is not only a fun and educational experience, it's also a great asset to your CV. As job markets are becoming increasingly international, employers tend to view international experience as a big advantage. Read more about how to arrange an internship or project…

How can you find an internship or research project and what arrangements do you need to make?

The university council and faculty councils are democratically elected co-participation bodies that represent both students and staff of the university and its faculties. Co-participation also takes place at departmental level through programme committees.

Education administration offices

Your study adviser or coordinator is an expert on all aspects of your study programme. If you have any questions or concerns about your programme, whether they be of a practical or academic nature, you can contact your study adviser.

As well as study associations, Leiden University also has a number of other associations through which you can develop your skills and gain experience that will come in useful in your later professional life.

Approval and application

Welcome to Leiden University

How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

Once you complete your Bachelor’s or Master’s degree you will be awarded your diploma during a celebratory graduation ceremony. Some study programmes also have ceremonies for the awarding of first-year (propedeuse) diplomas or other important achievements. The awarding of your diploma is always arranged…

Personal development, Working effectively

Safe use of IT

Astronomers led by Leiden PhD candidate Richelle van Capelleveen have, for the first time, discovered an exoplanet that has carved a bright gap in the protoplanetary disc around its star. This rare observation provides new insights into how young planets shape their surroundings.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

To understand the universe as a whole, simulations on a cosmic scale are required. An international team of astrophysicists, led by Leiden University, is today making one of the largest cosmological datasets ever available for free. It comprises more than 2.5 petabytes of simulation data.

The role of the Board of Examiners is to ensure that study programmes adhere to their Course and Examination Regulations. The Board of Examiners oversees all tests and examinations within the institute and determines whether students have acquired the knowledge and skills required for the awarding of…

Leiden scientists lead COLIBRE, a groundbreaking set of cosmological simulations. By including key missing physics, cold gas and cosmic dust, they offer the most realistic picture yet of how galaxies formed and evolved since the dawn of time.

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;…

Michiel Hogerheijde has been appointed Vice-Dean of the Faculty of Science as of 1 January 2027. He succeeds Bart de Smit, who has held the position since 2019. Hogerheijde is looking forward to working together with students and staff. ‘Good education is something you create together.’

Lecture, Oort lecture

Festival

When writing a thesis or paper you must make good use of the insights you have gained during your lectures and studies so far. You should also refer to relevant literature and carry out your own research on the topic.