Phys.org news

Phys.org / In the US, Western rivers may be allies in the fight against climate change

For decades, scientists have generally thought that rivers emit more carbon dioxide, a greenhouse gas, than they take in. But a new analysis of every river network in the contiguous United States—including underrepresented ...

Nov 6, 2025 in Earth
Phys.org / Unraveling water's effect on chitin nanocrystals

Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, have used three-dimensional atomic force microscopy (AFM) and molecular dynamics simulations to determine the structure of water in the hydration ...

Nov 6, 2025 in Nanotechnology
Phys.org / The enzyme that doesn't act like one: NUDT5 controls DNA building block production through structure, not catalysis

Inside every cell, a finely tuned metabolic network determines when to build, recycle, or stop producing essential molecules. A central part of this network is folate metabolism, a process that provides vital chemical units ...

Nov 6, 2025 in Biology
Phys.org / New polariton technology could advance thin infrared detectors in various industries

Researchers at the University of Turku, Finland, have developed an organic infrared photodiode that achieves record-level sensitivity in devices that are ultrathin and ready to be integrated into different applications. This ...

Nov 6, 2025 in Physics
Phys.org / Creating better tools to read our DNA's hidden instructions

DNA isn't just a long string of genetic code, but an intricate 3D structure folded inside each cell. That means the tools used to study DNA need to be just as sophisticated—able to read not only the code itself, but how ...

Nov 6, 2025 in Biology
Phys.org / Illegal shark fin trade persists despite protections

Despite more than a decade of international efforts to curb the trade of threatened shark species, new research led by FIU marine biologist Diego Cardeñosa and Demian Chapman, director of the Shark and Rays Conservation ...

Nov 6, 2025 in Biology
Phys.org / Scanning nanoprobe microscope reveals the hidden flexibility of cancer cells

Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, report in ACS Applied Nano Materials a new method to precisely measure nuclear elasticity—the stiffness or softness of the cell nucleus—in ...

Nov 6, 2025 in Nanotechnology
Phys.org / Motor protein 'hook' reveals how neurons deliver cargo with precision

For decades, scientists have known that motor proteins like kinesin-2 ferry vital cargo along microtubule "highways" inside cells. But how these molecular vehicles identify and bind to the right cargo remained a mystery. ...

Nov 6, 2025 in Biology
Phys.org / Temperature triggers distinct RhRu₃Oₓ reaction mechanisms, offering clues for better water-splitting catalysts

The oxygen evolution reaction is more relevant to your daily life than you would think. It is used in many electrochemical devices, such as batteries. However, this reaction still has a lot of room for improvement that would ...

Nov 6, 2025 in Chemistry
Phys.org / Sulfur cave spiders build an arachnid megacity and possibly the largest-ever spider web

Researchers may have discovered the world's biggest spider web, a massive subterranean structure spanning over 100 square meters in a sulfur cave on the Albania–Greece border. The multilayered web along a wall near the ...

Nov 5, 2025 in Biology
Phys.org / Main driver of Sargassum blooms in the Atlantic Ocean revealed

By the beginning of June this year, approximately 38 million tons of Sargassum drifted towards the coasts of the Caribbean islands, the Gulf of Mexico, and northern South America, marking a negative record. Especially during ...

Nov 5, 2025 in Earth
Phys.org / Universe's expansion 'is now slowing, not speeding up': Evidence mounts that dark energy weakens over time

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests.

Nov 5, 2025 in Astronomy & Space