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

No more lectures and exams for the Radio Astronomy course taught by Michiel Brentjens. The corona crisis is a moment of reflection that has changed his whole way of teaching. Instead of being in front of the class, he lets his students build a radio telescope with paint cans.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with two Colombian universities, Universidad Nacional de Colombia and Universidad de Antioquia.

Do you have questions about the Astronomy master’s programme? Please contact us.

How many stars are there in the Universe? And how can astronauts float in space? These and many other questions about astronomy will be answered at Leiden University on Saturday 9 February.

Do you have questions about the Astronomy master’s programme? Please contact us.

Do you have a question about studying at Leiden University or student life in Leiden? Do you want more information about the Astronomy programme? Chat with a current student for answers to your questions!

You have ample opportunity to assemble your own study path in Cosmology. The courses cover the full spectrum from theoretical early universe to observational cosmology.

Bernhard Brandl, the new Leiden Professor of Infrared Astronomy, is developing instruments for the world’s largest telescopes. These telescopes can be used to observe objects in space that are more than 13 billion years old. Brandl will deliver his inaugural lecture on 26 September.

The SRON space research institute currently located in Utrecht will be relocating to South Holland. The institute, which constructs highly advanced technological instruments for astronomy research and for research on exoplanets, will relocate to new premises adjacent to Leiden University's Science Campus.…

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

The two-year Astronomy and High-Tech Innovation master’s specialisation places you at the heart of the latest astronomical discoveries, cutting-edge instrumentation, high-precision measurements, and innovative technologies in advanced instrumentation engineering. The programme is supported by researchers…

Northern lights, stellar winds and exoplanets. This is what astronomer's PhD research revolved around. PhD candidate astronomer Rob Kavanagh developed mathematical models to better understand the interactions between exoplanets and stellar winds and to define features of exoplanets. He will receive…

This is an Erasmus+ International Credit Mobility project of the Faculty of Science and Leiden University College with four universities in Nigeria.

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.

Leiden University offers you several services related to career orientation and job application skills

Leiden University offers you several services related to career orientation and job application skills.

Leiden University offers you several services related to career orientation and job application skills

Leiden University offers you several services related to career orientation and job application skills

Leiden University offers you several services related to career orientation and job application skills

Leiden University offers you several services related to career orientation and job application skills

Leiden University offers you several services related to career orientation and job application skills.

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.

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

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.

Leiden University offers you several services related to career orientation and job application skills.

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.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with two Armenian universities, Yerevan State University and Byurakan Astrophysical Observatory.

Astronomers at Leiden University have discovered the first planets using a new instrument: the planet hunter MASCARA. This instrument, developed at Leiden Observatory, looks specifically for planet transitions around the brightest stars in the sky, which surprisingly enough have so far have hardly been…

Find out how to apply for Astronomy at Leiden University by following our step-by-step guide.

A moon rock from the Apollo 17 mission, antique globes and the cosmos according to Wassily Kandinsky. Ewine van Dishoeck, Professor of Molecular Astrophysics, has put together an impressive exhibition at Rijksmuseum Boerhaave.

With new algorithms and supercomputers, an incredibly detailed radio map of the universe was created. Now astronomers can look at radio data of galaxies with much more precision. This was published in Nature Astronomy by Leiden PhD student Frits Sweijen and colleagues.

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.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with the Ethiopian Space Science and Technology Institute.

Professor Simon Portegies Zwart and doctor Jeroen Bédorf had the honour to write for the IEEE Software magazine.

The IBL Office welcomes you and will answer all your questions regarding general information, administrative issues, or redirections towards IBL subdivisions and people.

Can astronomers mitigate climate change? This is what Leiden astronomer Leonard Burtscher and his colleagues discussed at the annual meeting of the European Astronomical Society. For the second year in a row, the meeting was online. And according to Burtscher, it should stay that way. During a special…

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

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

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

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

The Jeugdwerkgroep is a national astronomy association for young people who are interested in astronomy. The Leiden section organizes a monthly meeting in the Old Observatory Leiden.

Find out how to apply for Astronomy at Leiden University by following our step-by-step guide. PLEASE NOTE: The specialisation High-Tech Innovation starts in September 2026.

Theoretical physicist Stephen Hawking (76) passed away on 14 March at his home in Cambridge, having been a long-term sufferer of the muscular disease ALS. A number of Leiden scientists look back at the life and scientific career of this world-famous physicist. 'He was very approachable and extremely…