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Dialog / Hidden threats in the dark: Alarming levels of human-made debris in Mediterranean sea caves

Just when we thought we had described all the possible marine environmental recipients of plastic pollution, new research comes in to overturn the picture.

Dec 18, 2025 in Earth
Phys.org / Decaying dark matter: Unidentified X-ray emission lines in galaxy cluster spectra may point the way

Scientists search for "decaying" dark matter (DDM) because it offers unique signatures like specific X-ray or gamma-ray lines or neutrino signals not seen in normal matter, potentially revealing dark matter's particle nature, ...

Dec 17, 2025 in Astronomy & Space
Phys.org / Turning plastic waste into valuable chemicals with single-atom catalysts

The rapid accumulation of plastic waste is currently posing significant risks for both human health and the environment on Earth. A possible solution to this problem would be to recycle plastic waste, breaking it into smaller ...

Dec 20, 2025 in Nanotechnology
Phys.org / Machine learning and microscopy solve 170-year-old mystery of premelting ice

Through a novel combination of machine learning and atomic force microscopy, researchers in China have unveiled the molecular surface structure of "premelted" ice, resolving a long-standing mystery surrounding the liquid-like ...

Dec 19, 2025 in Physics
Medical Xpress / Rethinking recurrent brain activity: Core neurons provide an alternative explanation

Neuroscientists have been trying to understand how the human brain supports numerous advanced capabilities for centuries. The cerebral cortex, the outer layer of the brain, is now known to be responsible for many of these ...

Dec 20, 2025 in Neuroscience
Tech Xplore / We may never be able to tell if AI becomes conscious, argues philosopher

A University of Cambridge philosopher argues that our evidence for what constitutes consciousness is far too limited to tell if or when artificial intelligence has made the leap—and a valid test for doing so will remain ...

Dec 17, 2025 in Business
Phys.org / Roman soldiers defending Hadrian's Wall were infected by parasites, study finds

A new analysis of sewer drains from the Roman fort of Vindolanda, close to Hadrian's Wall, has shown that the occupants were infected by three types of intestinal parasite—roundworm, whipworm, and Giardia duodenalis.

Dec 18, 2025 in Other Sciences
Phys.org / 13 years of detailed US CO₂ emissions data released

New research from Northern Arizona University shows detailed CO2 emissions for the United States from 2010 to 2022.

Dec 17, 2025 in Earth
Phys.org / Neutrality isn't a safe strategy on controversial issues, research shows

Researchers Rachel Ruttan and Katherine DeCelles of the University of Toronto's Rotman School of Management are anything but neutral on neutrality. The next time you're tempted to play it safe on a hot-button topic, their ...

Dec 16, 2025 in Other Sciences
Phys.org / UK's worst-case climate risks laid bare for lawmakers

British policymakers planning for climate change now have detailed worst-case scenarios at their disposal, filling a gap that left the UK unprepared for extreme outcomes.

Dec 18, 2025 in Earth
Phys.org / Global peatlands revealed as critical frontier in fight against climate change

Global peatlands—huge expanses of partially decayed vegetation—store more carbon than is naturally present in the atmosphere but are under pressure from drainage-based agriculture. New research from Murdoch University ...

Dec 18, 2025 in Earth
Phys.org / California on track for lowest Lake Mead use in 75 years

Lake Mead may be facing historic shortages, but officials from the Colorado River state that uses the most water are celebrating unprecedented water savings.

Dec 17, 2025 in Earth