An international team of astronomers including Leiden professor Ewine van Dishoeck has observed the benzene molecule (C6H6) in a planet-forming disk around a young star for the first time. The observations tell us more about the forming of planets in this disc, like our own Earth. The scientists publish…

The first fine for space debris has been issued. An American company that had failed to clean up its space junk has been fined $150.000.

A special type of mirror to reflect X-rays has more possible applications than space research. Targeted radiation therapy for cancer, for example. Next to his full-time job, physicist David Girou mapped out the possibilities. He will receive his PhD on 14 June.

Recently, the oldest parts of the Leiden University Archives have been preserved and digitised thanks to a grant from Metamorfoze. This makes an important source on the history of Leiden University – and academic life in the Northern Netherlands in a broader sense – widely available.

Protostars, data science, and the James Webb Space Telescope—Adriaan Janssen’s curiosity knows no bounds. As a double bachelor’s student in Physics and Astronomy, he has truly found his calling, underscored by his nomination for the title of Leiden Science Young Talent 2024.

After ten years and one day, Leiden Observatory has a new director. As of 1 September, Ignas Snellen will set the course for the astronomical institute. In this interview, you will get to know Ignas. Or at least a little. That is why we gave him five dilemmas and asked the people around him who he really…

Large pairs of planets thought to orbit each other without a star, do not exist after all. That conclude Leiden researchers, after extensive computer modelling and simulations. What the double dots seen by the James Webb Space Telescope are, remains a mystery.

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…

The Leiden University team representing the International Institute of Air and Space Law (IIASL) won the World Finals of the Manfred Lachs Space Law Moot Court Competition that took place in Paris on 20 September 2022.

For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…

The International Astronautical Congress (IAC) that took place last week in Paris was extremely successful for IIASL.

At faculty and study programme level there are various regulations in place to ensure that everything runs as it should. For example, there are thesis and faculty regulations, as well as rules and guidelines on assessments, exams, degree classifications and plagiarism.

SRON, the Netherlands Institute for Space Research, is holding an open day on Sunday 25 September. It has had a branch at the Leiden Bio Science Park since 2021 and works closely with Leiden University.

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

From a billionaires’ space race to the launch of tens of thousands of minisatellites: space is becoming busier than ever. This means more than enough work for Tanja Masson-Swaan, an assistant professor at the Institute of Air and Space Law at Leiden University. Because who makes the rules and makes…

Deze week sluiten we het academisch jaar af met verschillende FGGA-studenten, waarin zij hun zomer- en toekomstplannen vertellen, maar ook terugblikken op het afgelopen jaar: ‘Ik vond het ontzettend prettig om weer terug te komen naar de fijne sfeer op Wijnhaven.’

On 28 June, a group of 35 students (13 from Leiden) visited the law faculty as part of the Space Summer School, a 5-day course organised by the LDE Centre 'Space for Science and Society' and NL Space Campus.

A team led by Leiden University in the Netherlands and the National Radio Astronomy Observatory have, for the first time, robustly detected semi-heavy water ice around a young sunlike star. In this ice, some of the ordinary hydrogen atoms have been replaced by deuterium, a heavier variant of hydroge…

Organisation

Astronomers have found complex organic ice outside the Milky Way for the first time. The discovery shows that the building blocks of life could arise early in the universe - and under a variety of conditions, said Leiden astronomer Will Rocha.

Bridging the gap between the space sector and society, together with students from other disciplines. That’s the aim of the LDE Space & Society Honours Programme, which is launching this year. Applications close 6 October 2024. Read on to discover if it’s for you!

Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disc galaxy seems as orderly as present-day galaxies, but we see it as it was when the Universe was only 700 million years old. This is surprising since, according to our current understanding of…

They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.

Two teams of astronomers, including one from Leiden University, have discovered oxygen in the most distant known galaxy, JADES-GS-z14-0. This groundbreaking discovery shows that galaxies could form much faster in the early universe than was previously thought.

Building more in urban areas is, in most places in the Netherlands, the smartest way to tackle the housing crisis. This is evident from research conducted by Janneke van Oorschot, published in a partner journal of Nature. Remarkably, this does not have to come at the expense of green spaces in cities.…

An international team of scientists, including Xander Tielens of Leiden Observatory, has used space telescope Hubble and the ALMA observatory to show that UV radiation from massive stars can prevent planets from forming. The researchers publish their findings on 1 March in the journal Science.

The Student Living Room at the KOG will soon officially open its doors. All Leiden Law School staff and students are welcome to come and see this new space during the official opening event on Tuesday 23 May at 12.00 hrs. A free lunch will be provided for all, we’ll raise a toast with a glass of bubbles,…

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…

When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental scientist Joeri Morpurgo looked at the differences and designed a general…

A time-lapse of the universe in more detail than ever before: that’s the aim of the NSF–DOE Vera C. Rubin Observatory in Chile, which will unveil its first images of the night sky on 23 June. Researchers at Leiden Observatory have played a major role in making it all possible.

When designing public spaces, noise is often a neglected issue. Architects and urban planners know little about it; noise experts see it mainly as a problem that should be solved simply by reducing the volume. University lecturer Andrea Giolai (LIAS), researcher Kevin Toksöz Fairbairn (ACPA) and Professor…

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

Discover how skateboarding transforms cities by reading anthropologist Sander Hölsgens' research. Learn about his two new books exploring skateboarding as a sensory experience and powerful learning tool within areas as diverse as therapy, care, parenting and education.

Connecting space to society and gaining problem-solving experience: that’s the goal of LDE Space & Society, a new honours programme for bachelor’s students in Leiden, Delft and Rotterdam. What does the programme look like? And what do students hope to learn? We visited a kick-off session full of exc…

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.

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;…

What started as pioneering work, has evolved over decades to become a renowned institute in 2025 with an internationally acclaimed master's programme. 'Almost everyone involved in the aviation and space sector knows us in Leiden.'

During the second episode of this Leiden Law podcast, hosts Juli Wentholt and Ishana Badhai will talk with Tanja Masson-Zwaan about the latest developments in Space Law.

‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…

An international team of astronomers led by Matus Rybak (Leiden University) has proven, thanks to accidental double zoom, that millimetre radiation is generated close to the core of a supermassive black hole. Their findings have been accepted for publication in the journal Astronomy & Astrophysics.

Planets existing in other solar systems contain invaluable information about the origin of planets and life. PhD candidate Yapeng Zhang has studied their atmospheres by looking at their smallest parts: isotopes. With her research she hopes to discover what makes our own solar system unique.

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

Leiden archaeologists have been conducting research with students and local archaeologists in Oss (in the province of Brabant) for 50 years. An exhibition at Leiden University shows how these finds tell the region’s story.

Students on the Adv. LL.M. Air and Space Law reacted quickly to the news of Ukrainians fleeing the war in Ukraine to neighbouring countries. Filip Draba, who is from Poland, collected donations from the class and, together with additional contributions from family and friends in Poland, he amassed €…

Astronomers and surgeons from Leiden are collaborating with industry to develop an optical instrument that delivers faster, more accurate imaging of tumour tissue and abnormal blood flow during surgery.