This Saturday will be the first Kaiser Spring Lecture of this year! - A series of public lectures on Astronomy in the Old Observatory.

The program for the Kaiser Spring Lectures 2018 has been published! Visit the Old Observatory in March for four amazing lectures about the Space Age.

The program for the Kaiser Spring Lectures 2018 has been published! Visit the Old Observatory in March for four amazing lectures about the Space Age.

Lecture, Kaiser Lente Lezing

Lecture, Kaiser Spring Lecture

Four different astronomical societies are active in the Old Observatory. We are very proud of the commitment these associations show to organize activities.

The Faculty of Science has multiple study associations, which organise both study-related and social activities for students.

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.

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.

The Old Observatory houses four historical telescopes. On this page you can learn more about them.

PhD candidate Agnes van Steen researched the history of the Leiden women’s rights movement (1860-1990) and found that the university produced many feminists.

Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.

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.

The Natuurwetenschappelijk Gezelschap Leiden (Leiden Science Society) is organising short online evening lectures, every two weeks on Thursday, held by a Leiden scientist who will talk about an aspect of the Corona crisis from their expert point of view. NGL members, alumni, (former) employees, students…

Leiden University regularly confers honorary doctorates, and presents awards and prizes.

Of the 32 historic buildings that are opening their doors to the public on the Open Monument Days on 8 and 9 September, five are University buildings. The Hortus Botanicus is also open.

Leiden Professor of Astronomy Mike Garrett is searching for signs of extraterrestrial intelligence. In his Kaiser lecture on 23 April he will discuss how far science has progressed in this quest.

In her book Rap 73, Dorrit van Dalen shares intimate anecdotes and what for many are previously unknown stories about the Academy Building and its users. Stories such as who held heated debates in the beautiful vaulted Gewelfkamer, and why the singer of the Russian punk band Pussy Riot was given pride…

Music, being together and the impact of science were at the heart of the festive opening of the academic year and the start of the faculty’s 200-year anniversary. The faculty was 200 years old on 2 August 2015. The anniversary was celebrated in style, attended by 500 members of staff and students.

For the first time more than half century, one of oldest telescopes at Leiden Observatory is getting a major improvement.

According to some stories, Einstein washed his hands there only once. According to others, students moved it as a joke. Whatever the case may be, Einstein's sink has enjoyed mythical status among students and employees of the Faculty of Science for decades. But what is the real story? Alumnus Alex Pietrow…

Lecture

This page contains all relevant information for lecturers teaching in the Astronomy bachelor's and/or master's curriculum at Leiden University.

Below thesis archives will be moved shortly (work in progress) to the Leiden Repository. Once this is done, theses submitted by MI students (from 2008 onwards) can be accessed via the Repository and will be removed from this site.