How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

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…

Personal development, Working effectively

Safe use of IT

Safe use of IT

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

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.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

A minor allows you to develop your knowledge beyond the boundaries of your study programme, or to specialise further in your own field of study. You can follow a minor in Leiden and also in Delft or Rotterdam.

To understand the universe as a whole, simulations on a cosmic scale are required. An international team of astrophysicists, led by Leiden University, is today making one of the largest cosmological datasets ever available for free. It comprises more than 2.5 petabytes of simulation data.

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…

Leiden scientists lead COLIBRE, a groundbreaking set of cosmological simulations. By including key missing physics, cold gas and cosmic dust, they offer the most realistic picture yet of how galaxies formed and evolved since the dawn of time.

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.

Lecture, Oort lecture

Festival

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.

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…

Schedules

We have just had an evacuation in the Pieter de la Court building, fortunately because of a false alarm. We would like to thank everyone and especially our Emergency Response Team colleagues for cooperating in a smooth evacuation.

‘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…

How do you detect life on a planet light years away? During her PhD research, astronomer Willeke Mulder worked on an instrument to detect such signals – culminating in an experiment from a hot air balloon.

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.

Books and study materials

Education administration offices

Education, Organisation

Organisation

Galaxies in the early universe contain more dust and hidden star formation than previously thought. That's what Ivana van Leeuwen concludes in her PhD research, where she combines data from various telescopes to create a more complete picture.

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.

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

How the TikTok account came across his publication remains a mystery to researcher Martín Hernán Di Marco. But he is well aware that his work has gone viral. The video has now been viewed five million times and shared more than 100,000 times.

Education

Space telescope Euclid is capable of unravelling the secrets of the universe. That is what the images published by ESA today show, according to astronomers working with the telescope's data. The images exceed all expectations. Scientists within the Euclid consortium, including astronomers Henk Hoekstra…

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…

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

Astronomers have used the James Webb Space Telescope to catch an extraordinary glimpse of a massive galaxy taking shape in the early universe. They identified a compact group of at least six galaxies that are likely to merge into a single enormous system. At the heart of this cosmic construction site…

The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…

Research

Research