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כתבות אחרונות מאתר 'Phys'
Phys

Gold nanoplasmonic chip tracks L-DOPA response in Parkinson's 'mini-brains'‎

Researchers have developed an organoid-on-a-chip technology that verifies the efficacy of Parkinson's disease treatments in real time. The technology combines a stem cell–derived "mini-brain" with a nanoplasmonic sensor engineered to maximize light–matter interaction.

19:07
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Phys

3I/ATLAS has an extreme taste for heavy water‎

More and more details about 3I/ATLAS are filtering through the scientific process as time goes on. Our third known interstellar visitor attracted the attention of some of the world's most powerful observatories when it was discovered in July 2025, and some of those telescopes found something peculiar—the isotopes it contained appeared different. A new paper submitted to The Astrophysical Journal Letters (and available as a preprint on arXiv) by Kenji Furuya of the RIKEN Pioneering Research Institute in Japan and his co-authors shows that the isotopic discrepancy is likely due to the "low metallicity" of the stellar nursery in which 3I/ATLAS was born.

19:07
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Phys

Methane beneath the Greenland ice sheet shapes microbial life and influences the carbon cycle‎

A new study involving researchers from the Faculty of Science, Charles University, Prague, shows that methane concentration is among the key factors determining the composition of microbial communities at the margin of the Greenland Ice Sheet. The findings, published in Applied and Environmental Microbiology, provide new insights into processes that influence carbon and methane cycling in a rapidly warming Arctic.

18:47
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Phys

Milky Way's first microblazar may produce fastest particles in the galaxy‎

An international team of astronomers from ASTRON, JIVE, the University of Amsterdam and other institutions has found the first so-called "microblazar" in the Milky Way. This stellar system is composed of a massive star and a black hole with a jet that is pointed toward Earth. The researchers also identified the region where the jet hits a molecular cloud as a place where particles are accelerated to ultra-high energies, likely up to petaelectronvolts. This would make microblazars one of the most powerful particle accelerators in the galaxy. The research was appears in Astronomy & Astrophysics.

18:47
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Phys

Can a long-lived seabird evolve fast enough to avoid extinction under a changing climate?‎

As the climate changes, species face a critical question: Can they evolve quickly enough to keep pace with their changing environment?

18:22
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Phys

UN warns super El Niño a 'significant' threat to world health‎

El Niño represents a "significant" threat to global health, the United Nations warned Tuesday, as the world braces for a cycle of the climate phenomenon predicted to be the most intense on record.

18:22
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Phys

The tilt in Earth's axis makes the apparent position of continents shift with the seasons‎

Most kids learn in elementary school that the seasons are caused by Earth rotating on a tilted axis during its yearly orbit around the sun. The substantial tilt, about 23.5 degrees, is thought to be the result of an ancient planetary body, Theia, smashing into Earth about 4.5 billion years ago, in the same cataclysmic collision that formed the moon.

18:22
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Phys

Hurricane Polo strengthens to top Category 5 off Mexico‎

Hurricane Polo reached maximum Category 5 strength off Mexico's Pacific coast Tuesday but is expected to stay at sea, the U.S. National Hurricane Center (NHC) said.

18:06
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Phys

Respiratory problems climb past 170,000 cases in haze-hit Indonesia‎

More than 170,000 respiratory cases were recorded in regions affected by haze in Indonesia, a Health Ministry official said Tuesday, as the country has battled for weeks to control fires that caused the toxic smog.

18:06
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Phys

Hot spring amoeba breaks record for heat tolerance of complex life‎

A tiny, single-celled organism can thrive at temperatures that would kill all other known complex life. In a study published in Cell, scientists describe a new species of amoeba that can eat and reproduce in hot spring water as warm as 63°C (145°F) in California's Lassen Volcanic National Park. The amoeba can protect itself at temperatures up to 70°C (158°F) by changing shape and forming a protective outer layer.

18:06
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