An effect known from ball sports also appears in interactions of light and matter. Researchers at PSI have now directly observed this optical phenomenon for the first time.

At Paul Scherrer Institute PSI, positrons have been successfully produced at a test source for CERN’s proposed next-generation particle collider.

On August 20, the inauguration ceremony for a new plant on the PSI campus took place. Here the production of sustainable aviation fuel is being tested: synthetic kerosene produced in an exceptionally ...

Neutron and X-ray tomography show where water is bound inside a Martian meteorite – offering new insights into the early history of Mars.

How the human eye is optimised for daylight: PSI researchers reveal the three-dimensional structure of cone opsins in their dark states for the first time

Representations of the crystal structures of materials often lack information about the positions of hydrogen atoms. PSI researchers have found a way to fill this gap, using AI.

Some cells and structures in our bodies undergo particularly marked changes with advancing age: bone fractures become more frequent, and the brain usually doesn’t perform as well as it used to. Fundam...

A blood sample and artificial intelligence. PSI researchers are developing a method for cancer diagnosis using chromatin-based pattern recognition.

The software platform AiiDAlab was developed for computer simulations in materials research. It’s now becoming clear that it's also useful in many other areas, such as atmospheric research, controllin...

GEMS allows scientists to model the chemistry of complex systems. A new national consortium now guarantees the long-term development of this open-source software.

Researchers at PSI have established why the cells in our body react differently to stimuli and signals in old age compared with young cells. Their studies on human skin cells have shown that the chrom...

Production location, financing, and innovation shape the competitiveness of low-carbon fuels.

Some see brewing as an art, others as a science – Luc Van Loon combines both these virtues at his brewery. With the nose of a sommelier and the precision of a chemist, the former PSI researcher create...

Physicists using the Swiss Light Source SLS have found a way to measure the time involved in quantum events and found it depends on the symmetry of the material.

SwissFEL shows the molecular events that occur when a vitamin B12 photoreceptor absorbs light

At CERN near Geneva, tiny particles with extremely high energies are blasted at each other to answer big questions about the universe. The detectors that observe the collisions of these particles requ...

PSI gets an NCCR: The Muoniverse project will further expand research on the beamlines for elementary particles called muons – at the world’s leading facility for muon beams.

PSI is increasing the intensity of its muon beams a hundredfold. This opens up entirely new possibilities for physics and materials research.

Twelve PSI research highlights in 2025

Researchers at PSI have found a surprisingly inexpensive and fast method to make localised alterations in magnetic materials.

Microtubules have long been recognized as upstream mediators of intracellular signaling, but the mechanisms underlying this fundamental function remai…

Researchers at PSI have investigated on the molecular level how the cytoskeleton transmits commands within the cell. Their findings could provide the medical field with new options for intervention in...

For 30 years, experiments have been providing unique insight into how metals and ceramics degrade under high-energy proton bombardment.

Optimizations of X-ray nanotomography including the choice of resin allows high-resolution imaging of mouse brain tissue, approaching the resolution of volume electron microscopy. Since it does not re...

Inspired by technologies used in aerospace engineering, scientists have developed a way to capture the brain’s intricate structures using X-rays without destroying the samples.