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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 ...

Apr 3, 2026
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 ...

Apr 4, 2026
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.

Apr 4, 2026
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 ...

Apr 4, 2026
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 ...

Apr 4, 2026
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 ...

Apr 3, 2026
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.

Apr 4, 2026
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 ...

Apr 3, 2026
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 ...

Apr 4, 2026
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 ...

Apr 4, 2026
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 ...

Apr 4, 2026
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 ...

Apr 4, 2026