Celebrate Leiden University’s 450th anniversary with the special International Staff Week Connecting New Opportunities, taking place from 3 to 5 September. Join academics and professionals to explore transformative developments and challenges of the 21st century in international higher education.

The new government needs to look further ahead, says environmental scientist Rutger Hoekstra. ‘We keep pushing forward big dossiers like demographic ageing, climate and migration. Even though we know they play a big role in our future.’ Hoekstra therefore hopes that the new coalition agreement will…

During the spring of 2021, a group of eight biology students from Leiden set out into the dunes in search of amphibians. Using DNA, they determined the geographic origin of the animals. And guess what? In many cases they discovered exotic populations of animals that do not naturally belong in The Netherlands.…

PhD defence

PhD defence

Master’s students in Industrial Ecology and Governance of Sustainability have helped answer organisations’ questions about sustainability

An international team of astronomers, including astronomers from Leiden University, has found the missing link in the path taken by water through star-forming clouds and young stars to comets and planets. They did so with the help of the ALMA observatory in Chile. The researchers published their findings…

On January 1st Jasper Knoester started as our new dean. How is he finding it? What kinds of things is he doing and what does his day look like? In each newsletter, Jasper gives a peek into his life as dean.

Research on Asian plants is his life's work. Now a crown is added to that: a plant from the coffee family bearing his name. Paul Kessler is LUF professor of botanical gardens and botany of South East Asia and Scientific Director of the Hortus botanicus. 'Completely unexpectedly, you get to see the results…

Many poor people in Indonesia mainly rely on their family members, neighbours and the local community as a social safety net. One of the forms of aid from the community is called ‘jimpitan’ in Central Java. PhD candidate Ayu Swaningrum researched how this social security system works.

Leiden researcher Anne-Grete Märtson brought together a large number of studies to better understand antibiotic dosing in patients with obesity. The publication in a renowned medical journal has already garnered much positive reactions, Märtson says. ‘It’s high time researchers started sharing more…

Genetically modified organisms (GMOs) could be useful allies in the fight against critical environmental problems. Could because the use of GMOs is strictly regulated at the moment. A Leiden student team is now trying to make these GMOs safer with the aid of an ingenious lock.

An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…

Using all the software you need for lectures on your own laptop. From the new academic year, that will be the standard at our faculty. That is when the Bring Your Own Device pilot will start. The arrival of the software distribution platform brings many benefits. ‘Teaching will become more flexible…

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.

A banker who puts making money second and makes a profit nonetheless. A farmer who stops ploughing and using insecticides but still has a good harvest. A new white paper by Leiden-Delft-Erasmus and Naturalis Biodiversity Center shows how the meeting of disciplines provides solutions to climate change…

The board of the Pastoor Schmeits Prize for Astronomy Foundation has awarded the Pastoor Schmeits Prize 2025 to two individuals: Yamila Miguel, affiliated to the Leiden Observatory, Leiden University and SRON, and to Else Starkenburg, affiliated to the Kapteyn Institute, University of Groningen. The…

Lecture

Lecture

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 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;…