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Phys.org / Scientists discover a 1,200-year-old Fijian island likely built from discarded shellfish remains
Located off the coast of Culasawani, in the Fiji archipelago, is an island that is made up of materials that might be part of someone's dinner. A recent study took a closer look at the 3,000-square-meter island and discovered ...
Tech Xplore / Opening the door to more efficient orbitronic devices
Electrons have three intrinsic properties: spin, charge and orbital angular momentum. Researchers have long studied how to use spin to more efficiently create an electrical current. But the field of orbitronics—which is based ...
Phys.org / Artemis astronauts more than halfway to Moon, putting Earth in rearview
The Artemis 2 astronauts have passed the halfway point between Earth and the moon on Saturday as they sped toward a planned lunar flyby, with NASA releasing initial images of Earth taken from inside the Orion spacecraft.
Phys.org / A simple ECG test could flag racehorses at risk of exercise arrhythmias
A quick heart trace taken during a warm-up trot could identify racehorses at risk of cardiac arrhythmias during high-intensity exercise, according to a new study led by the University of Surrey. The screening method analyzes ...
Tech Xplore / AI companions can comfort lonely users but may deepen distress over time
AI companions are always available, never judge, never tire and never demand anything in return. If someone is struggling with loneliness, this frictionlessness can seem profoundly appealing. However, new research shows that ...
Phys.org / Quantum coherence could be preserved at large scales in realistic environments
Quantum states are notoriously fragile, and can be destroyed simply through interactions, measurements, and exposure to their surrounding environments. In a new theoretical study published in Physical Review X, Rohan Mittal ...
Phys.org / Artemis II's moonbound astronauts capture Earth's brilliant blue beauty as they leave it behind
The Artemis II astronauts have captured our blue planet's brilliant beauty as they zoom ever closer to the moon.
Tech Xplore / New memristor design uses built-in oxygen gradient to bring stability to reinforcement learning
In a recent study published in Nature Communications, researchers created a memristor that uses a built-in oxygen gradient to produce slow, stable conductance changes, enabling a reinforcement learning (RL) algorithm to learn ...
Medical Xpress / Smart sensor decodes fatigue and stress from body signals on the move
About one in three employees in Singapore report feeling burnt out—one of the highest rates globally. Burnout and chronic fatigue carry a substantial economic cost and pose serious risks in professions where alertness is ...
Tech Xplore / Helping resolve quantum computers' memory problem
A major problem with quantum computers is memory, as the information they contain can be quickly lost. Quantum computers are not yet fully reliable—they are far too unstable. However, all around the world, people are trying ...
Medical Xpress / Stress tested, testing stress: Novel organoid models how the adrenal gland develops
Sitting above each kidney are two small endocrine glands about the size of walnuts. These are the adrenal glands, responsible for producing hormones that help control some of the body's most critical functions. Among these ...
Tech Xplore / How a 'perfectly symmetrical' 2D perovskite could boost tandem solar cells
Rice University scientists and collaborators have created a new type of two-dimensional (2D) semiconductor that comes closer than ever to a "perfect" crystal. The findings, reported in the journal Nature Synthesis, could ...
