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Astronomy and Cosmology (MSc)

In the field of cosmology we look for scientific answers to the most fundamental questions that one can ask: How did the Universe start? How did it evolve and where does it go?

What does this master's programme entail?

Modern cosmology is a complex, multidisciplinary research area. Observations of the Universe with state-of-the-art telescopes on Earth and in space, supercomputer simulations of the origin of structure, and theoretical physics studies of the Hot Big Bang, the expanding Universe, and inflation provide a consistent understanding of our Universe. The current picture is quite accurate, yet full of new physics waiting to be discovered. Research in this area is moving fast, and requires familiarity with current theoretical ideas as well as a basic understanding of the data. The overall aim is to train you in this exciting research field.

Read more about our Astronomy and Cosmology programme.

Josephine Baggen

Former Student from The Netherlands

Josephine Baggen

I have always felt that I wanted to understand how the Universe works, which is why I chose to study the Master Astronomy & Cosmology at Leiden University. The program combines theoretical physics about the origin and structure of the universe with astronomical observations. By doing two research projects, you are challenged to become an expert in two different fields and you gain a lot of insight into the scientific world. For me it is a perfect combination between courses and research, that encourage me to pursue doing research in Astronomy and Physics.

I love the environment at the University and I am always happy to be there with my friends to drink a coffee or have a chat with a staff member. There is a pleasant interaction between students and staff and I enjoy having lectures and meetings full of critical discussions. The Master’s is also internationally oriented and I like that I have friends from all over the world.

Finally, Leiden itself is such a beautiful, cosy city. Not only at the University, but also at student and sport associations, is where I have made friends for life.

Discover why our students choose the Astronomy master's programme

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Reasons to choose Astronomy and Cosmology at Leiden University

  • The specialisation provides you with research training with a strong focus on modern observational, computational and theoretical cosmology.
  • We offer unique cosmology courses taught by the world’s leading researchers enabling you to become highly specialised in the field.
  • The programme is offered in close collaboration with the internationally renowned Leiden Institute of Physics, providing you with the opportunity to participate in relevant Physics courses and work on one of your Research Projects under the supervision of a staff member from the Leiden Institute of Physics.

Find more reasons to choose Astronomy and Cosmology at Leiden University.

Astronomy and Cosmology: the right master’s programme for you?

Are you a theory-oriented student interested in discovering all aspects of modern astrophysics, including observation, interpretation, simulation and theory? Then, Astronomy and Cosmology at Leiden University is the right master’s specialisation for you. This programme is based on combined research in astronomy and physics and is therefore open for students with a bachelor’s degree in Astronomy from a recognised university.

Read more about the entry requirements for Astronomy and Cosmology.