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Medical Xpress / Why nighttime heat drives a surge in suicide-related calls to crisis lines in Louisiana

Extreme heat poses serious risks to physical health but can also trigger a mental health emergency for some people. While the link between heat and suicide is well-documented, the specific stressors that drive someone to ...

Feb 20, 2026 in Psychology & Psychiatry
Phys.org / Sometimes less is more: Messier nanoparticles may actually deliver drugs more effectively than tightly packed ones

The tiny fatty capsules that deliver COVID-19 mRNA vaccines into billions of arms may work better when they're a little disorganized. That's the surprising finding from researchers who developed a new way to examine these ...

Feb 21, 2026 in Nanotechnology
Tech Xplore / How eyes affect our perception of a humanoid robot's mind

Eyes are said to be the mirror of the soul. Eyes and gaze direction guide attention, evoke emotions and activate the brain's social perception mechanisms. Researchers at Tampere University and the University of Bremen conducted ...

Feb 21, 2026 in Consumer & Gadgets
Phys.org / How early farming unintentionally bred highly competitive 'warrior' wheat

An evolutionary "arms race" for light and space led to the early domestication of wheat, according to new research that could offer fresh insights into crop design. The study led by Dr. Yixiang Shan and Professor Colin Osborne, ...

Feb 20, 2026 in Biology
Phys.org / A low-cost microscope to study living cells in zero gravity

As space agencies prepare for human missions to the moon and Mars, scientists need to understand how the absence of gravity affects living cells. Now, a team of researchers has built a rugged, affordable microscope that can ...

Feb 21, 2026 in Astronomy & Space
Phys.org / Could a recently reported high-energy neutrino event be explained by an exploding primordial black hole?

The KM3NeT collaboration is a large research group involved in the operation of a neutrino telescope network in the deep Mediterranean Sea, with the aim of detecting high-energy neutrino events. These are rare and fleeting ...

Feb 19, 2026 in Astronomy & Space
Medical Xpress / Scientists discover why we know when to stop scratching an itch

When you scratch an itch, something tells your brain when to stop. That moment of relief, when scratching feels "enough," is not accidental. Scientists have now identified a key molecular and neural mechanism behind this ...

Feb 21, 2026 in Neuroscience
Phys.org / Mirror image pheromones help beetles 'swipe right' to find mates

There are many ways to communicate with prospective romantic partners. If you are a Japanese scarab beetle, it's a matter of distinguishing left from right. New work from U.S. and Chinese scientists, published this week in ...

Feb 21, 2026 in Biology
Phys.org / The greatest risk of AI in higher education isn't cheating—it's the erosion of learning itself

Public debate about artificial intelligence in higher education has largely orbited a familiar worry: cheating. Will students use chatbots to write essays? Can instructors tell? Should universities ban the tech? Embrace it?

Feb 21, 2026 in Other Sciences
Tech Xplore / AI agent invasion has people trying to pick winners

An onslaught of artificial intelligence agents that handle tasks from writing code to dispensing tax advice has the tech world and financial markets scrambling to pick winners and shed losers.

Feb 22, 2026 in Machine learning & AI
Phys.org / Quantum entanglement pushes optical clocks to new precision

By replacing single atoms with an entangled pair of ions, physicists in Germany have demonstrated unprecedented stability in an optical clock. Publishing their results in Physical Review Letters, a team led by Kai Dietze ...

Feb 19, 2026 in Physics
Phys.org / Occupy Mars? Or the moon? Get a reality check on Elon Musk's plans

It's an age-old debate in space circles: Should humanity's first city on another world be built on the moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the moon as a "distraction." In a ...

Feb 21, 2026 in Astronomy & Space