Sense Jan van der Molen is vanaf 1 maart de nieuwe wetenschappelijk directeur van het Leiden Instituut voor Onderzoek in de Natuurkunde.

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…

Safe use of IT

Safe use of IT

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.

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

Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

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The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

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…

The night side of exoplanet WASP-43b, to the surprise of astronomers, does not appear to contain methane. It is likely that extreme winds do not allow enough time for methane to form in detectable amounts. This is the conclusion of an international team of scientists, with Leiden and Amsterdam contributions,…

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;…

Throughout the university you can print, copy and scan via multi-function printers (MFPs). To use them you will need a LU-card.

As many as seven first-year students from the Faculty of Science were honoured as young talents. In addition, the Royal Holland Society of Sciences and Humanities (KHMW) also lauded three master's students and an astronomy project during a vibrant ceremony on 28 November. Professor of Science Communication…

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.

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.

Schedules

While investigating 16 years of images of young stars from a retired astronomical camera, Leiden master's student Sam de Regt discovered that two of those stars were still enveloped in birth clouds. Never before has anyone captured these two stars in so much detail. He publishes his data-cleaning method…

Books and study materials

Books and study materials

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.

Education administration offices

Books and study materials

‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…

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Alumni event

You're about to graduate. That means there’s a lot to be arranged. The university expects you to take certain steps, as does your faculty and/or institute. Your faculty has various regulations and procedures in place that you need to follow carefully when arranging your graduation.

Research into depression in children, Leiden alumni in the Dutch House of Representatives and an exceptional achievement by one of our students: what do this topics have in common? They are among our most read stories of 2021.

Controlling fire was a turning point in the development of human civilisation. But how did fire become part of the human toolkit? The BBC radio show CrowdScience discusses the topic with Leiden archaeologists Andrew Sorensen and Kathy MacDonald.

What does it mean to be in a Dutch prison? What is true about the prejudices about being in jail? Criminologist Marieke Liem has released a podcast on Dutch national broadcaster NPO Radio 1: Hotel met tralies.

Social media are playing a key role in calling for resistance to the corona measures. Online, agreements are made about where and when people will gather to protest. The authorities are not always fully aware of what is happening and cannot just infiltrate, whereas civilians can often easily participate…

The 'deepest and sharpest' image of the Universe to date: the first photos from the new James Webb space telescope yesterday mesmerised astronomers and the public alike. Leiden Professor of Molecular Astrophysics, Ewine van Dishoeck, spoke to various media outlets about the first images, which include…

Alumnus Théo Pavlović received the Master's Speckmann award for his thesis: PAN RECORDS - A digital journey through the ethnic music niche that was supervised by Bart Barendregt. This price is awarded to the best fieldwork reports for ethnographic fieldwork. It includes a certificate and a prize of…

With great sadness we share the news that Prof. Harold Linnartz passed away suddenly and unexpectedly on Sunday 31 December 2023. We are all in shock, and our thoughts are with his wife and children, other family, and friends. Harold was at the heart of our institute, as a researcher, as a supervisor,…

The numbers of asylum seekers and the direct family members hoping to join them were not the problem, says Mark Klaassen. The stumbling block was the housing market. He says the asylum crisis is being used for electoral gain.

A presentation on the latest developments in artificial intelligence and law, several public lectures on Criminal Justice, and a brand new trial in which Leiden female serial killer ‘Goeie Mie’ was acquitted after all. It was all possible during Leiden European City of Science 2022. Below is an overview…

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

The university finds it important that students and staff are offered a safe environment. Read here about the safety measures in place and what you should do in case of emergencies or other incidents.

The university finds it important that students and staff are offered a safe environment. Read here about the safety measures in place and what you should do in case of emergencies or other incidents.

Course and exam enrolment

Michiel Hogerheijde will be the new Programme Director of the bachelor Astronomy starting 1 October. The appointment is for four years. Hogerheijde succeeds Harold Linnartz who has held the position since 2018.

'Education has always been something I am very interested in,' says the passionate Michiel Hogerheijde. He was already chairman of the astronomy programme committee and has been teaching for many years. Since 1 October, he is also the new Programme Director of the astronomy bachelor. 'I really enjoy…

Prof Harold Linnartz has been reappointed Director of Education of the bachelor and master programmes of Astronomy. The appointment is for a period of four years, until 1 October 2026.

82 years ago Queen Wilhelmina fled to England. Henk te Velde tells about her on the Australian radio show 'Nightlife'.

How wonderful would it be to use art, technology and science in Ukraine's recovery? Young Ukrainians currently residing in Poland get guidance to develop creative programmes and activities that can later be implemented. Leiden astronomers Pedro Russo and Kateryna Frantseva cooperate in the project.

Parents are not always heard before their children’s placement in care is extended. They can only have their say if they ask the judge for a hearing themselves. ‘It should be the other way round,’ says Mariëlle Bruning, Professor of Child Law in a ‘De Nieuws BV’ broadcast.

Last Friday the global Antibiotics Awareness Week begun: an entire week dedicated to antibiotic use. Antibiotics researchers from the LACDR therefore set out to tell primary school pupils about their research. Through role-playing, pupils were drawn into the world of antibiotics: 'Can the teacher not…

In a new video on the Faculty of Humanities' YouTube-channel, we follow MA student Russian and Eurasian Studies Sophie. She is doing an internship at VPRO's OVT, a weekly Dutch radio show that provides historical backgrounds for news, columns and documentaries.

Could water be present in planet-forming disks before the formation of rocky planets? The James Webb Space Telescope may have found evidence for that. Webb has for the first time observed water in the inner disc around young star where at greater distance, giant planets have already formed. The research…