A recent study published in National Science Review has revealed an extreme ionospheric electron density depletion and the pronounced hemispheric asymmetry during the May 2024 geomagnetic storm. The near-total depletion of ionospheric electrons caused widespread failures in high-frequency radio wave propagation. This research provides critical observational evidence from CMP and modeling insights into the ionosphere's response to extreme space weather, advancing understanding of the physical processes of magnetosphere-ionosphere-thermosphere coupling.

Researchers leveraged high-throughput computing and machine learning to systematically evaluate a large family of magnesium-based thermoelectric materials. The study pinpoints thermal expansion as a key knob: it strengthens lattice anharmonicity to reduce lattice thermal conductivity and narrows band dispersion to enhance the Seebeck coefficient, together lifting the figure of merit (ZT). Building on these insights, the team delivers a robust XGBoost predictor that accelerates the screening and optimization of Mg-based thermoelectrics.

Researchers have developed a novel MoS₂ phototransistor with ultra-high gain, capable of detecting extremely weak light signals and attomolar concentrations of disease biomarkers at room temperature. This innovation paves the way for ultra-sensitive, rapid, and reliable point-of-care diagnostics.

The centromere is a unique chromosomal locus responsible for the faithful segregation of chromosomes during cell division. Disruption of centromere integrity frequently causes aberrant chromosome segregation and chromosome instability, a hallmark of cancers. The function of G9a/GLP-mediated H3K9me2 at (peri)centromeric heterochromatin remains elusive. A study published in Science Bulletin carefully investigated this topic and revealed an important role of H3K9me2 in protecting the centromeric chromatin landscape and thus ensuring accurate chromosome segregation.

Foraminifera (forams) are shelled microorganisms that are abundant in the Earth’s seabed. Analyzing different species of forams provides important information about climate change, the state of the marine environment, and suitable areas for carbon capture and storage.

Researchers from Nanjing Forestry University in China have developed a new freely-available computer software package called phylolm.hp that helps scientists better understand how evolutionary history and environmental factors influence plant traits. The package uses advanced statistical methods to separate the relative contributions of phylogeny and ecological predictors in comparative plant studies.

To address the Ohmic losses and limited integration of conventional topological metasurfaces, Chinese scientists developed a novel approach by harnessing on-chip all-dielectric metasurfaces to precisely extract optical guided waves, replacing the loss-inducing role of metals. This strategy enables the creation and control of topological exceptional points in an all-dielectric environment, overcoming traditional limitations while leveraging the low-loss and high-integration advantages of on-chip dielectric platforms.

In an era where autonomous systems demand pinpoint accuracy, navigation algorithms face a tough trade-off between precision and speed.