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COVID-19 update: This course will start online and continue on campus later. Read more

What will I learn?

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

What does this master’s programme entail?

Cosmology is positioned at the interface between Theoretical Physics and Observational Astronomy. This specialisation is offered in collaboration with the also internationally well-known Leiden Observatory. It covers research subject like: observations of the universe with state-of-the-art telescopes on Earth and in space, supercomputer simulations of the origin of structure, Theoretical Physics study of the Hot Big Bang, the expanding universe, and inflation are providing a consistent picture of our universe which is quite precise, yet full of unknown 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, preferably in an integrated Cosmology master’s and PhD degree programme.

Why study Research in Physics, Cosmology at Leiden University?

  • The core elements of this specialisation are theory, data analysis and numerical simulations, with research on the origin of dark matter as one of the highlights.
  • The programme is offered in close collaboration with the internationally renowned research institute Leiden Observatory.
  • This Cosmology specialisation is part of the Leiden Sitter programme, where you can follow an integrated master and PhD programme.

Career prospects

With an MSc degree in Physics you are well prepared for broad array of career prospects in research or industry and have excellent career prospects: 90% of our graduates find a job within one month after graduation. The degree is also an excellent stepping stone for pursuing a PhD degree.


After completing the Physics master's programme you will have a broad array of career prospects. All students with a Master of Science in Physics are admissible to a PhD programme. If you have the desire to apply your knowledge of Physics outside the university, there are ample job possibilities in high-tech industry, software and consultancy companies worldwide, or a career as a teacher, science communicator or science policy maker.

Which department am I in?

Faculty of Science

Study options

Full Time (2 Years)

Tuition fees
€18,016.00 (14,55,250) per year
Application deadline

Expected April 2023

More details

Start date

Expected September 2022


Leiden University

Rapenburg 70,



2311, Netherlands

Entry requirements

For students from United States

Applicants need a BA or BSc degree (or equivalent) to be admitted to any of Leiden University’s master’s programmes. English-language proficiency: IELTS - 6.0; Toefl (internet based): 80 (component score: 20); Cambridge C2 Proficiency (CPE), or C1 Advanced (CAE): Cambridge component score of 169.

For international students

  • A copy of a valid passport or ID card
  • A copy of a Dutch residence permit (if applicable)
  • CV (résumé)
  • Language proficiency (if applicable)
  • Copies of diplomas and transcripts
  • Letter of motivation

*There may be different IELTS requirements depending on your chosen course.


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