Researchers from the University of Oxford have for the first time discovered an approach to electrically switch organic LEDs (OLEDs) to emit either left- or right-handed circularly polarized light without changing the light-emitting molecules. This could be useful for a range of technological applications, from more energy efficient OLED displays, to optical information transfer.
Tropical cyclones can unleash extensive devastation, as recent storms that swept over Jamaica and the Philippines made unmistakably clear. Accurate weather forecasts that buy more time to prepare are crucial for saving lives and are rooted in a deeper understanding of climate systems.
Driving this forward, researchers at the Institute of Science and Technology Austria (ISTA) and others have successfully identified a previously unknown cyclic climate pattern by historical reanalysis of datasets and satellite observations. The findings are published in PNAS.
Jiawei Bao still remembers coming home from middle school to catch the weather forecast on TV. It spanned from China’s northernmost province, Heilongjiang, to the southernmost province and tropical island, Hainan. In winter, the temperature between these regions can range from cold to balmy, varying by a staggering 50 degrees Celsius.
This isn’t your normal wedding cake. The gummy bears on top can dance, their heads and arms moving thanks to injections of air through a pneumatic system, and the LED candles at the bottom are powered by batteries made out of chocolate. Such edible electronics have been proposed as a solution to electronic waste. The cake was unveiled at Expo 2025 in Osaka, Japan, on 13 April.
Cancer stem cells are a subpopulation of tumor cells characterized by their ability to self-renew, induce tumors upon engraftment in animals and exhibit strong resistance to chemotherapy and radiotherapy. These cells exhibit numerous characteristics in common with embryonic stem cells, expressing some of their markers, typically absent in non-pathological adult differentiated cells. The aim of this study was to investigate the potential of conditioned media from cancer stem cells to modulate the fate of Leukemia Inhibitory Factor (LIF)-dependent murine embryonic stem cells (mESCs) as a way to obtain a direct readout of the secretome of cancer cells. A functional assay, “the StemDif sensor test”, was developed with two types of cancer stem cells derived from grade IV glioblastoma (adult and pediatric) or from gastric adenocarcinoma.
Electronics traditionally rely on harnessing the electron’s charge, but researchers are now exploring the possibility of harnessing its other intrinsic properties. In a Nature Communications study, scientists from Japan demonstrated that sound waves in certain solids can generate orbital currents—flow of electron orbital angular momentum.
Their findings establish a foundation for realizing next-generation “orbitronic” devices using existing acoustic technology.
Since the discovery of electricity, countless advancements in technology have relied on harnessing the electron’s charge, which is the fundamental principle behind most traditional electronics.
Thousands of ASUS WRT routers, mostly end-of-life or outdated devices, have been hijacked in a global campaign called Operation WrtHug that exploits six vulnerabilities.
Over the past six months, scanners looking for ASUS devices compromised in Operation WrtHug identified “roughly 50,000 unique IPs” around the globe.
Most of the compromised devices have IP addresses located in Taiwan, while others are distributed across Southeast Asia, Russia, Central Europe, and the United States.
A slender glass fiber no thicker than a human hair placed across a particle beam could improve accelerator monitoring. A team is testing the use of hollow-core optical fibers to measure the profile and position of the beams extracted from the Super Proton Synchrotron, CERN’s second-largest accelerator, which feeds the experiments located in the North Area.
Unlike conventional fibers, which guide light through solid glass, hollow-core optical fibers are mostly empty inside but have a microstructure design that guides light through resonance–antiresonance effects on the electromagnetic field.
By filling these fibers with a scintillating gas—a gas that emits tiny flashes of light when struck by particles—scientists can create a simple yet powerful radiation sensor that helps them to adjust the beam profile and position and may even allow them to measure the delivered beam dose in real time.
The European Space Agency’s HydroGNSS, a twin-satellite mission to gather data on Earth’s water cycle, is scheduled to launch on 19 November at 19:18 CET (10:18 Pacific Time). Live coverage of the launch will be shown on ESA Web TV.
The live coverage will start at 19:01 CET (10:01 Pacific Time). Launch is from the Vandenberg Space Force Base with SpaceX on Falcon 9.
Please note: launch times are subject to change at short notice. This page will be updated as soon as information becomes available, so please check back or bookmark the article.
A research team led by Prof. Zou Xudong from the Aerospace Information Research Institute of the Chinese Academy of Sciences (AIRCAS) has proposed a new solution to address two longstanding challenges in Micro-Electro-Mechanical Systems (MEMS) resonant accelerometers: temperature drift and measurement dead zones.
By implementing a dual-mode operating scheme that effectively decouples the operating frequencies of the device’s differential beams, the team has achieved improvements in the sensor’s accuracy and performance. Their findings were recently published in Microsystems & Nanoengineering.
The study revealed that driving one beam in its first resonant mode while operating the other in its second resonant mode can enhance temperature compensation and mitigate the modal localization effect that typically causes measurement dead zones. The dual-mode design also preserves the geometrical symmetry of the beams, which is critical for minimizing temperature-induced errors and maintaining stable sensor performance.