The Southern Ocean is one of Earth's most important climate regulators, yet the clouds covering this remote region remain among the least understood features in atmospheric science. Their influence on the planet's energy balance makes accurate cloud representation essential for reliable weather forecasts and climate projections. A new study combines observations from an Antarctic expedition with advanced atmospheric datasets and climate models to investigate the processes behind this long-standing challenge in climate science.

Researchers from the Institute of Industrial Science, The University of Tokyo and collaborating institutions found that manipulating the spin of hydrogen atoms can affect how the atoms react with a magnetic nickel surface. By controlling spin orientation with a magnetic field, the team was able to change hydrogen adsorption and chemical reaction rates, suggesting a new way to control surface chemistry.

Weather forecasts rely on many and various kinds of data, including temperature, humidity and wind data. For the first time, researchers including those at the University of Tokyo demonstrate that a long-theorized improvement to weather models by adding data on water isotopes in the atmosphere does in fact work. They showed that incorporating satellite measurements of water vapor isotopes into weather models improves forecasts of atmospheric conditions for up to five days, including better predictions of heavy rainfall in many regions.  

A new computation-guided framework for exploring aggregation-induced emission (AIE) luminogens has been developed by researchers from Japan. Quantum chemical calculations, organic synthesis, and advanced spectroscopy revealed how the introduction of donor and acceptor groups and their substitution positions shape excited-state dynamics in bridged stilbene derivatives. AIE behavior can be predicted from a small number of computational descriptors, offering a rational strategy for designing luminescent AIE materials for applications such as OLEDs, bioimaging, and sensors.

In environments with similar objects, autonomous robots must determine whether a detected object is a known landmark or a newly encountered one while mapping. To mitigate associated limitations, a research team developed BPDA-GMM, a Bayesian framework, that handles both data association and landmark creation simultaneously using accumulated evidence. Tests demonstrate that the approach enhances trajectory accuracy and object mapping while maintaining real-time performance on embedded hardware. 

Simulating how heat moves through rods when they are heated simultaneously and influence each other is a difficult task, but researchers at Tohoku University’s Graduate School of Information Sciences found a mathematical solution. 

Researchers at Nagoya University have built a graphene nanoribbon that can switch which way it twists using a natural solvent. Graphene nanoribbons are thin ribbon-shaped structures made of fused carbon rings. Twisted or helical versions of these ribbons show promise for advanced light and electronic devices. However, no graphene nanoribbon could switch that twist on demand, until now.

Scientists have worked out how to switch between a right-handed and left-handed twist (chirality) by changing the solvent around it. The discovery, published in Nature Communications, opens opportunities for new optical switches, chemical sensors, and spintronic components that adapt to changing environments. 

The hidden world of quantum mechanics exists at scales many orders of magnitude smaller than living organisms, and yet scientists have long theorized that quantum effects play an important role in biology. Birds’ ability to sense magnetic fields during migration is one of the most well-known mysteries in this field, with leading theories suggesting that this sensing could be achieved by exploiting quantum entanglement. By proving the Pontryagin Maximum Principle for quantum systems, researchers have come up with a recipe to control quantum effects that may finally be able to put this avian hypothesis to the test, while also unlocking new biological platforms for quantum computing.

Leaf stalks – the edible part of vegetables like celery and Swiss chard – can grow even bigger than before thanks to key research identifying the role of a potassium channel called AKT5. Until now, its function has been a mystery. 

Researchers at the University of Osaka used cyclic PPS manufacturing by-products as movable molecular crosslinks in biodegradable PCL. Medium-sized c [7] PS rings approximately doubled toughness while slowing enzymatic degradation, whereas larger c [9] PS rings accelerated degradation to no residual film mass after 48 hours. The findings identify molecular ring size as a design parameter for tuning material lifetime while also offering a waste-to-value route toward more sustainable polymer systems with programmable properties.