Phys.org news

Phys.org / Mirror-image molecules steer electron spins and lift perovskite solar cell efficiency

Some molecules come in two "handed" forms. This property, called chirality, can influence not only how molecules interact with light but also which electron spins they allow to pass. Researchers at the University of Osaka ...

Aug 27, 2026
Phys.org / Tiny oxygen gaps may determine whether next-generation memory films store data well

Researchers have captured in real time the "birth moment" when the performance of a next-generation memory material is determined. The key lies in controlling oxygen vacancies, microscopic defects created when oxygen atoms ...

Aug 27, 2026
Phys.org / Some Galápagos 'yellow' sea turtles remain homebodies, surprising scientists

Sea turtles are famous for being prodigious wanderers. Guided by Earth's magnetic field, ocean currents and the sun, they tend to crisscross the seas in search of food, returning to the region of their birth every few years ...

Aug 27, 2026
Phys.org / Oxygen collisions reveal how quark–gluon matter approaches equilibrium

High-energy nuclear collisions recreate extreme conditions similar to those in the early universe, producing quark–gluon plasma (QGP), a hot state of matter in which quarks and gluons are no longer confined inside protons ...

Aug 27, 2026
Phys.org / Venus's mysterious clouds may hide an exceptionally strong light absorber

Venus appears pale yellow in visible light, but ultraviolet images reveal dramatic dark and bright patterns moving with the planet's upper sulfuric acid clouds. Scientists have known about these markings for roughly a century, ...

Aug 27, 2026
Phys.org / Researchers reveal the unique 'tagging' mechanism that guides the sleeping brain in remembering key thoughts

Why do we remember certain moments while forgetting others? Every day, our minds are bombarded with thousands of pieces of information, yet our brains have a limited capacity to consolidate these experiences into lasting ...

Aug 27, 2026
Phys.org / A few minutes of freezing can change the fate of iron in nature

Just a few minutes of freezing and thawing can have a decisive impact on how ferrihydrite, the most reactive iron mineral in cold soils, permafrost and glaciers, transforms, according to researchers at Umeå University. As ...

Aug 27, 2026
Phys.org / XY or ZW? Gecko chromosomes reveal evolution's hidden playbook

Why do humans rely on XY chromosomes to determine sex, while birds use ZW—and many reptiles use neither, letting temperature decide instead? Sex determination is remarkably diverse across the animal kingdom. In genotypic ...

Aug 27, 2026
Phys.org / Degraded DNA reveals two extinct Galapagos giant tortoise lineages

Using a new combination of computational tools to analyze ancient DNA, Yale researchers have discovered two ancient, extinct giant tortoise lineages that once lived on the Galapagos Islands.

Aug 27, 2026
Phys.org / Vehicle-mounted spectroscopy system detects methane in real time

Researchers have developed a vehicle-mounted spectroscopy system that can reliably detect methane in real time while driving. Using a moving vehicle to detect methane could make it easier to locate hidden methane emissions ...

Aug 27, 2026
Phys.org / Parental care can influence evolution, beetle experiments show

How has offspring dependence on parents evolved over the course of evolution? Researchers at the University of Bayreuth, in collaboration with Kyoto University, Japan, have investigated one possible mechanism by studying ...

Aug 27, 2026
Phys.org / Study reveals inter-city collaboration on emission reduction boosts sustainability performance

With Hong Kong recently recording record-breaking high temperatures, extreme weather has once again raised public awareness of global warming and emission-reduction measures. A large-scale international study led by The Hong ...

Aug 27, 2026