Phys.org news

Phys.org / Astronomers explore the double nucleus of galaxy NGC 4486B

Using the James Webb Space Telescope (JWST), an international team of astronomers has observed an elliptical galaxy known as NGC 4486B. Results of the observational campaign, published Dec. 16 on the arXiv preprint server, ...

Dec 26, 2025 in Astronomy & Space
Phys.org / Chinchorro mummification may have originated as a form of art therapy, study suggests

In a recent study published in the Cambridge Archaeological Journal, Dr. Bernardo Arriaza argues that the practice of artificial mummification among the Chinchorro people may have evolved as a response to high infant mortality ...

Dec 26, 2025 in Other Sciences
Phys.org / Detecting the hidden magnetism of altermagnets

Altermagnets are a newly recognized class of antiferromagnets whose magnetic structure behaves very differently from what is found in conventional systems. In conventional antiferromagnets, the sublattices are linked by simple ...

Dec 26, 2025 in Physics
Phys.org / 16,000 fossil footprints in central Bolivia reveal dinosaur behavior

Legend once had it that the huge, three-toed footprints scattered across the central highlands of Bolivia came from supernaturally strong monsters—capable of sinking their claws even into solid stone.

Dec 26, 2025 in Biology
Phys.org / How did Bronze Age plague spread? A sheep might solve the mystery

In the Middle Ages, a plague killed a third of Europe's population. Fleas carried the plague bacterium, Yersinia pestis, transmitting the Black Death from infected rats to millions of people.

Dec 26, 2025 in Other Sciences
Phys.org / Gemini and Blanco telescopes unlock clues to origin of longest gamma-ray burst ever observed

Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of these bursts are observed to flash and fade within a few seconds to minutes. But on 2 July 2025, ...

Dec 26, 2025 in Astronomy & Space
Phys.org / Elusive wild cat feared extinct rediscovered in Thailand

An elusive wild cat long feared extinct in Thailand has been rediscovered three decades after the last recorded sighting, conservation authorities and an NGO said Friday.

Dec 26, 2025 in Biology
Phys.org / Archaeologists discover unique mosaic patolli board at Guatemalan Maya city

In a study published in Latin American Antiquity, Dr. Julien Hiquet and Dr. Rémi Méreuze analyzed the remains of a unique mosaic-style patolli game board discovered in the Classic Period city of Naachtun, Guatemala.

Dec 25, 2025 in Other Sciences
Phys.org / New Guineans and Aboriginal Australians descend from two groups who arrived 60,000 years ago, research suggests

A collaboration between the University of Huddersfield's Archaeogenetics Research Group and the University of Southampton's Center for Maritime Archaeology, has clarified the first settlement of New Guinea and Australia by ...

Dec 25, 2025 in Other Sciences
Phys.org / Ultracold atoms observed climbing a quantum staircase

For the first time, scientists have observed the iconic Shapiro steps, a staircase-like quantum effect, in ultracold atoms.

Dec 25, 2025 in Physics
Phys.org / The gut bacteria that put the brakes on weight gain in mice

The gut microbiome is intimately linked to human health and weight. Differences in the gut microbiome—the bacteria and fungi in the gut—are associated with obesity and weight gain, raising the possibility that changing ...

Dec 25, 2025 in Biology
Phys.org / Fabricating single-photon light sources from carbon nanotubes

Tiny tubes of carbon that emit single photons from just one point along their length have been made in a deterministic manner by RIKEN researchers. Such carbon nanotubes could form the basis of future quantum technologies ...

Dec 25, 2025 in Nanotechnology