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כתבות אחרונות מאתר 'Phys'
Phys

Nanopattern method unlocks precise control of disorder for wave-guiding devices‎

A research team has developed a methodology to precisely design and control the "degree of disorder" in nanopattern arrays using metal-infiltrated block copolymer (BCP) thin films. The work was led by Professor So Youn Kim of the Seoul National University College of Engineering Department of Chemical and Biological Engineering, in collaboration with Professor Su-Mi Hur's team at DGIST and Professor S. Joon Kwon's team at Sungkyunkwan University. The paper is published in the journal Nature Communications. The study was selected as an Editors' Highlight in materials science and chemistry.

23:03
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Phys

Injectable silk-kudzu hydrogel achieves complete wound closure in laboratory tests‎

Researchers at the Terasaki Institute for Biomedical Innovation have developed an injectable hydrogel, a water-based gel material, made from silk proteins and a plant-derived compound. In laboratory tests, the material promoted complete wound closure within 72 hours, suggesting a potential new approach to minimally invasive soft tissue repair.

22:18
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Phys

Reanalysis suggests 'Phoebe' is a variable star, not a primordial black hole‎

A new study debunks a recent claim that astronomers may have detected a lunar-mass primordial black hole. In a reanalysis of observations from the Dark Energy Camera (DECam), researchers found that the star nicknamed "Phoebe" was simply doing something ordinary that many stars do: changing its brightness naturally over time. The new findings have been reported in a paper posted to the arXiv preprint server on June 17.

21:39
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Phys

12 billion years old, this interstellar comet is older than our solar system‎

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was quickly recognized as something special.

21:02
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Phys

Ancient algal defenses against UV may have helped plants conquer land‎

A new study sheds light on how the ancestors of modern land plants survived one of the most challenging aspects of life outside water: exposure to harmful ultraviolet (UV) radiation. By examining a microscopic alga closely related to the earliest land plants, researchers have uncovered a sophisticated and dynamic system for coping with sunburn—one that likely helped plants colonize land more than 500 million years ago. The results are published in Current Biology.

20:02
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Phys

Better unemployment welfare could curb rise of populism‎

The study, by researchers Chase Foster (King's College London) and Jeffry Frieden (Columbia University), analyzed 134 national elections in 16 countries between 1990 and 2021, alongside data from 11 waves of the European Social Survey. The research is published in the journal European Union Politics.

19:38
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Phys

Australia boosts shark-spotting drone coverage at Sydney beaches‎

Australia will expand shark-spotting drone coverage year-round at beaches across Sydney and beyond from July 1, authorities said Sunday, following a rise in attacks and sightings.

18:50
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Phys

Shining blue light on gold-graphene nanodots achieves wound healing trifecta‎

Closing wounds, burns and deep cuts isn't enough to kick-start healing. A wound needs a clean environment, free of bacterial infection and interruption. That calls for three components working together—one to kill bacteria, one to clean the wound and one to support recovery.

18:50
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Phys

NASA races to save Swift telescope from falling back to Earth with daring rescue mission‎

NASA is racing to save an aging telescope from falling back to Earth with a daring rescue mission.

18:40
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Phys

More than 1,300 excess deaths recorded in Europe heat wave: WHO‎

The World Health Organization said Sunday that more than 1,300 excess deaths had been recorded in Europe since June 21 in connection with the record-breaking heat wave roasting much of the continent.

18:40
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