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Phys.org / Saturn's rings extend further above and below the ring plane, forming a 'halo'

The Cassini probe took its final orbits, referred to as the Grand Finale Orbits (GFOs), in 2017, before launching itself into Saturn's atmosphere. During these GFOs, the probe collected samples of dust above and below Saturn's ...

Dec 17, 2025 in Astronomy & Space
Phys.org / Beachy Head Woman's origin story: DNA analysis reveals she was local to southern Britain

The identity of a Roman-era individual found in southern England has finally been resolved after scientists at the Natural History Museum were able to sequence high quality DNA from her skeletal remains.

Dec 17, 2025 in Other Sciences
Phys.org / 13 years of detailed US CO₂ emissions data released

New research from Northern Arizona University shows detailed CO2 emissions for the United States from 2010 to 2022.

Dec 17, 2025 in Earth
Phys.org / How a new diet of penguins is changing puma behavior and social lives in Patagonia

Penguins in the coastal steppes of Argentina have a new enemy to worry about: the increasing numbers of pumas in Monte León National Park (MLNP). These powerful mountain cats were once on the brink of disappearing from this ...

Dec 17, 2025 in Biology
Phys.org / AI learns to build simple equations for complex systems

A research team at Duke University has developed a new AI framework that can uncover simple, understandable rules that govern some of the most complex dynamics found in nature and technology.

Dec 17, 2025 in Other Sciences
Medical Xpress / People's facial mimicry predicts their choices, study finds

In social situations, humans often copy the facial expressions of others who they are interacting with. This phenomenon, known as facial mimicry, is widely reported and has been linked to social connection and an empathic ...

Dec 17, 2025 in Psychology & Psychiatry
Medical Xpress / Recreational marathoners show no long-term heart damage after 10 years

A collaboration of researchers in Switzerland, Germany, and the US tracked cardiac function in recreational marathon runners over a 10-year span. Repeated endurance training and racing aligned with stable right ventricular ...

Dec 17, 2025 in Cardiology
Phys.org / Subtle twist in materials prompts surprising electromagnetic behavior

Materials react differently to electric and magnetic fields, and these reactions are known as electromagnetic responses. In many solid materials, unusual electromagnetic responses have been known to only emerge when specific ...

Dec 17, 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 / Active thermal metasurfaces amplify heat signatures by a factor of nine

Light undergoes a unique phenomenon called superscattering, an optical illusion where a very small object scatters far more light than expected. This happens when multiple scattering modes overlap and interact, allowing tiny ...

Dec 17, 2025 in Physics
Phys.org / Saturday Citations: Nice people are happier; Uranus may not be icy; SIM farm reporting

This week, researchers identified signaling pathways underpinning drug resistance in pancreatic cancer, a normally lethal diagnosis. A physicist proposed that conscious states in the brain may arise from the brain's ability ...

Dec 13, 2025 in Other Sciences
Phys.org / California on track for lowest Lake Mead use in 75 years

Lake Mead may be facing historic shortages, but officials from the Colorado River state that uses the most water are celebrating unprecedented water savings.

Dec 17, 2025 in Earth