Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification – a process hardly possible when oxygen is present. This denitrification in sandy sediments in well-oxygenated waters can substantially contribute to nitrogen loss in the oceans.

Starting June 1, 2025, Dr. Jonas Ohland, laser physicist at GSI/FAIR, will lead the young investigator group ALADIN (Adaptive Laser Architecture Development and INtegration). For this purpose, he will receive funding of 2.8 million euros over five years from the German Federal Ministry of Research, Technology and Space as part of the “Fusionstalente” (fusion talents) program. The ALADIN project lays the foundation for the realization of stable, efficient lasers for inertial confinement fusion.

• Tracing the origin of an ultra-hot exoplanet: The chemical composition of WASP-121b suggests that it formed in a cool zone of its natal disc, comparable to the region of gas and ice giants in our Solar System.

• Methane indicates unexpected atmospheric dynamics: Despite extreme heat, methane was detected on the nightside – a finding that can be explained by strong vertical atmospheric circulation.

• First detection of silicon monoxide in a planetary atmosphere: Measurements of this refractory gas allow quantifying the rocky material the planet had accumulated.

Physicists at ETH Zurich have developed a lens with magic properties. Ultra-thin, it can transform infrared light into visible light by halving the wavelength of incident light.

A team led by Professor Masakatsu Murakami has developed a novel concept called micronozzle acceleration (MNA). By designing a microtarget with tiny nozzle-like features and irradiating it with ultraintense, ultrashort laser pulses, the team successfully demonstrated—through advanced numerical simulations—the generation of high-quality, GeV-class proton beams: a world-first achievement.

Turbulence—where flows and vortices intricately intertwine—is a fundamental phenomenon found across nature, from our everyday surroundings to the cosmos. In particular, high-temperature fusion plasmas exhibit highly complex turbulence, driven by the coupled fluctuations of multiple physical quantities such as density, temperature, and magnetic fields. A research team led by  Dr Go Yatomi of the National Institute for Fusion Science (a graduate student at SOKENDAI at the time of submission) and Associate Professor Motoki Nakata of Komazawa University (also a visiting researcher at RIKEN) has developed a novel method to analyze turbulent states and interactions from the perspective of "information," drawing inspiration from mathematical frameworks in quantum mechanics, such as information entropy. This approach enables the discovery of previously overlooked turbulence regimes in plasmas and reveals essential nonlinear interactions between multi-scale vortices and flows—interactions that conventional energy-based analyses often miss. The study also proposes potential applications of the method to experimental diagnostics of turbulence and fluctuations. Looking ahead, this technique is expected to extend beyond plasma physics, offering new insights into complex systems in atmospheric and oceanic sciences, as well as in social dynamics, where complex flows and multi-variable interactions also play critical roles.