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Phys.org / JWST study suggests a handful of 'leaky' galaxies reionized the early universe

A new study analyzing the James Webb Space Telescope (JWST) spectra of more than 1,400 galaxies suggests a surprisingly small group of "leaky" galaxies was responsible for cosmic reionization. The paper outlining this work ...

9 hours ago
Medical Xpress / Common midlife vascular risk factors may cut dementia-free life by up to 13 years

A new study, published in Neurology Open Access, shows an association between three common vascular risk factors and the amount of dementia-free time people experience after age 55. The study hints that dementia is not inevitable ...

10 hours ago
Medical Xpress / A precise neuronal mechanism allows the brain to plan future routes to remembered goals

When humans and other animals move through familiar or unfamiliar environments, their brains rely on numerous intricate neural processes to decide which path to take next. Past studies have identified a specific population ...

8 hours ago
Phys.org / Two-qubit entangling gate flags its own errors as detectable photon losses

Quantum errors are a normal part of quantum computing because fragile physical qubits (the tiny components storing data) can easily break down because of environmental noise, like heat, stray signals or microscopic vibrations. ...

11 hours ago
Phys.org / Sunlight-powered setup generates quantum entanglement

Today's quantum technologies rely on energy-intensive lasers, raising concerns that scaling them up could further increase energy demands. In new work, researchers have demonstrated that quantum entanglement between photons ...

13 hours ago
Phys.org / Songbirds may have developed sharper senses to de-husk seeds

Songbirds, birds belonging to the Passeriformes order, are best known for their ability to produce complex musical sounds. Yet some songbird species also have another remarkable skill: They can easily remove the tough layer ...

15 hours ago
Phys.org / Two decades of blazar observations, and the mysteries keep piling up

Narrow jets of luminous matter may be emitted toward Earth from the nuclei of active galaxies billions of light-years away. The galaxy then appears as a point source and is called a blazar. A Polish-German team of scientists ...

7 hours ago
Phys.org / Coupled AI and physics model improves typhoon-wave height forecasting

Typhoons pose significant threats, with sudden, dangerous waves that endanger ships, offshore platforms and coastal infrastructure in the northwest Pacific Ocean. Current typhoon forecasting methods sometimes underestimate ...

14 hours ago
Phys.org / Super-Earths may be solid deep inside their mantles

Deep inside super-Earths—rocky planets with masses between 1 and 10 times that of Earth—high pressure can cause familiar minerals to take forms rarely seen on Earth. Understanding more about the temperature and pressure conditions ...

8 hours ago
Phys.org / AI and 'Ramanomics' could eliminate a major obstacle to studying living cells

Fluorescent dyes have long been used in biological research to identify and visualize structures within living cells. Although effective, they have several drawbacks, including altering the cells under study, limiting the ...

8 hours ago
Tech Xplore / Hidden goals can undermine AI teamwork, study finds

Large language models (LLMs), the computational models that underpin conversational agents such as Gemini and ChatGPT, are now widely used by people worldwide to rapidly find information, summarize documents and generate ...

14 hours ago
Phys.org / Spacecraft observations may conceal how particles really move through near-Earth space

High-energy particles in Earth's radiation belt can appear to spread out randomly, even when they are moving in a "predictable" way. This is because spacecraft observations naturally blur the fine-scale structure of the particle ...

14 hours ago