Inside every electronic device, the flow of electricity is controlled by a switch called a transistor. For decades, these switches were made from silicon. More recently, engineers have turned to a material called gallium nitride (GaN), which enables small, efficient devices like smartphone chargers.

However, at very high voltages, electric fields inside these transistors can concentrate at specific points, causing them to fail prematurely. As a result, today’s GaN devices still struggle to perform at the highest voltage levels achieved by silicon.

To overcome this limitation, researchers in the Power and Wide-band-gap Electronics Research Lab (POWERlab) in EPFL’s School of Engi...

A team of researchers led by the University of Hawaiʻi at Mānoa Department of Chemistry has uncovered a faster way large carbon-based molecules may form in space, helping solve a long-standing mystery about how some of the building blocks of the universe grow.

The study, published in Nature Communications in August 2026 and first-authored by chemistry graduate student Shane Goettl, identifies a new chemical process that could explain the rapid formation of polycyclic aromatic hydrocarbons (PAHs)—large molecules made of carbon and hydrogen that are found throughout the universe, from dying stars to clouds of gas between stars.

Scientists have known these molecules are abundant ...

Persistent pain often has no clear cause. However, studies show measurable differences in the structure and activity of the brains of those affected. This might explain why they experience chronic pain...

In dark skies at night, distant starlight twinkles and speaks to vast cosmic histories almost as old as time itself. New data from instruments such as NASA’s James Webb Space Telescope are helping astrophysicists probe deep cosmic mysteries, including the evolution of black holes and galaxies.

Using supercomputers to help make sense of the data, researchers from multiple institutions worked together to complete the largest cosmological hydrodynamic simulation, called ASTRID—a mind-boggling computational run that traces the evolution of the universe from its earliest times to the present.

“The most important information about our recent study is that we’ve evolved the ASTRID simulation to z = 0, and that these data are available,” said Yihao Zhou, a Ph.D...