X-ray techniques map and measure the invisible properties of altermagnets

Two new tools to map and measure the invisible properties of altermagnets
Calculated RPED patterns of MnTe for circular po-larized light with helicity q || L~ [1100] at the L3-resonance ( hbar omega = 639.7eV a-d) or the L2-resonance ( hbar omega = 651.8eV e-h). Credit: Physical Review Letters (2025). DOI: 10.1103/pl1p-v5rs

The new big thing in magnetics is altermagnetism, a form of magnetism that promises to power the next-generation of electronics. Unlike ferromagnets, like a fridge magnet, where all internal atomic spins align to create a strong magnetic field, altermagnets have no net magnetic pull (strongly magnetic on the inside, but appears non-magnetic on the outside). This is similar to antiferromagnets where internal spins cancel each other out...

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Dark energy might be changing and so is the Universe

Dark Energy Might Be Changing
A groundbreaking simulation study has revealed that dark energy, the mysterious force driving the Universe’s accelerated expansion, may not be constant after all. Credit: AI/ScienceDaily.com

Dark energy may be alive and changing, reshaping the cosmos in ways we’re only beginning to uncover. New supercomputer simulations hint that dark energy might be dynamic, not constant, subtly reshaping the Universe’s structure. The findings align with recent DESI observations, offering the strongest evidence yet for an evolving cosmic force.

Since the early 20th century, scientists have gathered convincing evidence that the Universe is expanding — and that this expansion is accelerating...

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A little-known desert berry may hold the key to fighting diabetes

Scientists may have uncovered a surprising new weapon in the fight against diabetes: the fruit of an ancient desert plant. Known as Nitraria roborowskii Kom, this resilient shrub has long been used in traditional medicine but has only recently gained scientific attention. In modern experiments, its fruit extract displayed a remarkable ability to reverse insulin resistance and restore healthy metabolism in diabetic mice.

The results went far beyond stabilizing blood sugar. Researchers found that the extract also corrected lipid imbalances and reduced oxidative stress, two major complications of diabetes. These effects were linked to the activation of a key cellular signaling pathway that helps regulate metabolism...

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Saturn’s icy moon may host a stable ocean fit for life

Enceladus heat transfer infographic
A new study has constrained the Enceladus’ global conductive heat flow by studying its seasonal temperature variations at its north pole (yellow). These results, when combined with existing ones of its highly active south polar region (red) provide the first observational constraint of Enceladus’ energy loss budget (<54 GW) – which is consistent with the predicted energy input (50 to 55 GW) from tidal heating. This implies Enceladus’ current activity is sustainable in the long term – an important prerequisite for the evolution of life, which is thought possible to exist in its global sub-surface ocean. Image credit: University of Oxford/NASA/JPL-CalTech/Space Science Institute (PIA19656 and PIA11141)

A new study led by researchers from Oxford University, Southwest Research I...

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