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Phys.org / 'Ghost tunnels' guide sound waves in one direction while staying invisible to others
Acoustic metamaterials are a fast-evolving family of materials which manipulate sound waves in ever more advanced ways. Now, a team led by Changqing Xu at Nanjing Normal University in China has engineered an acoustic metamaterial, ...
Phys.org / Bottled lightning makes a cleaner fuel
Northwestern University chemists have discovered a new way to turn natural gas into liquid fuel—and it's lightning in a bottle. By harnessing tiny bursts of plasma—or mini "lightning bolts"—in glass tubes submerged in water, ...
Medical Xpress / Combining new drug with chemotherapy extends survival of platinum-resistant ovarian cancer patients in clinical trial
Platinum-based chemotherapy is a standard treatment for ovarian cancer, but its effectiveness can be limited in some cases. In some patients, the disease returns or progresses within six months of the last platinum dose, ...
Phys.org / New open-source Python-based software boosts space-weather modeling
University of Birmingham experts have created open-source computer software that helps scientists understand how fast-moving particles behave when they interact with electromagnetic waves in space. Understanding how these ...
Phys.org / Cracking a 16-year proton mystery as ultra-precise hydrogen measurements confirm a smaller-than-expected core
The simplicity of a hydrogen atom makes it an ideal model for studying atomic structure and interactions. Yet, despite the fact that its simplest form consists of only one proton and one electron, physicists have had a hard ...
Phys.org / Are aliens real? Scientists have been hunting for extraterrestrial life since the time of Aristotle
Do aliens exist? Could Earth really be the only planet hosting intelligent life?
Medical Xpress / Chloride ions do more than help neurons fire—they may also help control how genes are expressed
Chloride ions, best known for helping cells maintain fluid balance and electrical stability, may also play a more direct role in regulating brain development than previously thought. In a new study, published in the journal ...
Medical Xpress / Gut microbes reveal a surprising tie to cortisol spikes during acute stress
The gut microbiome influences numerous physiological processes. Researchers at the University of Vienna have now demonstrated for the first time that, in healthy adults, the diversity of gut bacteria and their capacity to ...
Phys.org / Chatbots show political bias and steer voters toward some parties, analysis finds
Popular AI chatbots such as ChatGPT and Gemini are not neutral and tend to favor certain political parties when asked who users should vote for. This makes them unsuitable for providing advice in connection with elections, ...
Phys.org / A backyard bug repellent is derailing bumblebees' ability to navigate
In the summer, many people turn to mosquito repellents to reduce the insects' buzzing and bites. One solution that has become increasingly popular in recent years is the Thermacell device, which releases vaporized, pyrethroid-based ...
Phys.org / Dark volcanic ash has visibly reshaped Martian surface since 1976
Noticeable change on Mars often takes millions of years—but the European Space Agency's Mars Express has captured a blanket of dark ash creeping across the planet in just decades.
Medical Xpress / A new depression treatment may rival electroconvulsive therapy while avoiding one of its biggest drawbacks
An international clinical trial led by researchers at the Center for Addiction and Mental Health (CAMH) and University of California San Diego School of Medicine, published in The Lancet Psychiatry, has found that magnetic ...