Phys.org news

Phys.org / What's powering these mysterious, bright blue cosmic flashes? Astronomers find a clue

Among the more puzzling cosmic phenomena discovered over the past few decades are brief and very bright flashes of blue and ultraviolet light that gradually fade away, leaving behind faint X-ray and radio emissions. With ...

Dec 16, 2025 in Astronomy & Space
Phys.org / A universal law could explain how large trades change stock prices

Financial markets are often seen as chaotic and unpredictable. Every day, traders around the world buy shares and sell assets in a whirlwind of activity. It looks like a system of total randomness—but is it really?

Dec 16, 2025 in Physics
Phys.org / Neutrality isn't a safe strategy on controversial issues, research shows

Researchers Rachel Ruttan and Katherine DeCelles of the University of Toronto's Rotman School of Management are anything but neutral on neutrality. The next time you're tempted to play it safe on a hot-button topic, their ...

Dec 16, 2025 in Other Sciences
Phys.org / 8.2 ka event triggered social transformation, not destruction, at China's Jiahu site

In a recent study, Dr. Yuchen Tan and colleagues examined the response of the North China Plain settlement of Jiahu to the abrupt climatic 8.2 ka event. They found that Jiahu not only survived but also demonstrated remarkable ...

Dec 16, 2025 in Other Sciences
Phys.org / A new global map uses a fleet of satellites to catch methane leaks from the energy sector

When it comes to global warming and greenhouse gases, methane is one of the bad guys. It's the second most important contributor to climate change after carbon dioxide. However, quantifying the exact amount being released ...

Dec 16, 2025 in Earth
Phys.org / Rare brown dwarf discovered orbiting ancient star

Astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) and elsewhere report the discovery of a new brown dwarf about 60 times more massive than Jupiter. The newfound substellar object, designated TOI-7019 ...

Dec 16, 2025 in Astronomy & Space
Phys.org / Scientists identify first non-coding gene that controls cell size

What keeps our cells the right size? Scientists have long puzzled over this fundamental question, since cells that are too large or too small are linked to many diseases. Until now, the genetic basis behind cell size has ...

Dec 16, 2025 in Biology
Phys.org / Category '6' tropical cyclone hot spots are growing

The oceanic conditions that churn up the very strongest of hurricanes and typhoons are heating up in the North Atlantic and Western Pacific, fueled by warm water that extends well below the surface. Human-caused climate change ...

Dec 16, 2025 in Earth
Phys.org / A new family of barium-based crystals reveals rules for structural changes

The ultimate goal of materials scientists is to design and create materials with precise structures and tailored properties. Predictive technologies have advanced significantly with the rise of AI, yet the delicate nature ...

Dec 16, 2025 in Chemistry
Phys.org / Laser light and the quantum nature of gravity: Proposed experiment could measure graviton energy exchange

When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of light and cause tiny distortions in space-time. Albert Einstein predicted their existence, and the ...

Dec 16, 2025 in Physics
Phys.org / Altermagnetism in RuO₂ thin films: A new magnetic material for the AI era

A research team has demonstrated that thin films of ruthenium dioxide (RuO₂) exhibit altermagnetism—the defining property of what is now recognized as the third fundamental class of magnetic materials.

Dec 16, 2025 in Physics
Phys.org / Shaking magnets with ultrafast light pulses reveals surprising spin control

An international team of researchers led by Lancaster University has discovered a highly efficient mechanism for shaking magnets using very short light pulses, shorter than a trillionth of a second. Their research is published ...

Dec 16, 2025 in Physics