Phys.org news
Phys.org / Sticky secrets: What ancient chewing gum is telling us about Neolithic communities
Ancient bones, artifacts and texts offer numerous insights into the past, as does the chewing gum that Neolithic people chewed on and spat out long ago. Analysis of lumps of birch bark tar from ancient settlements has revealed ...
Phys.org / Changing-look active galactic nucleus investigated by researchers
By analyzing the available data from various space observatories and ground-based telescopes, Indian astronomers have conducted a long-term multiwavelength study of a changing-look active galactic nucleus (AGN) known as NGC ...
Phys.org / Ancient lead exposure may have shaped evolution of human brain
An international study changes the view that exposure to the toxic metal lead is largely a post-industrial phenomenon. The research reveals that our human ancestors were periodically exposed to lead for over two million years, ...
Phys.org / A new attempt to explain the accelerated expansion of the universe
Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern physics. Because it cannot be fully answered using our current physical worldview, researchers ...
Phys.org / Astronomers detect radio signals from a black hole tearing apart a star—outside a galactic center
An international team of astronomers has discovered the first tidal disruption event (TDE) producing bright radio emission outside the center of a galaxy. The findings are published in The Astrophysical Journal Letters.
Phys.org / Analysis of 4.4-million-year-old ankle exposes how earliest ancestors moved and evolved
For more than a century, scientists have been piecing together the puzzle of human evolution, examining fossil evidence to understand the transition from our earliest ancestors to modern humans.
Phys.org / Water reveals superpowers hidden at the nanoscale
Researchers at The University of Manchester have made an unexpected discovery about one of the world's most familiar substances—water. When confined to spaces a few atoms thick, water transforms into something completely ...
Phys.org / Rain in the Sahara? Researchers predict a wetter future for the desert
The Sahara Desert is one of the driest areas in the world. It gets just 3 inches of precipitation per year—one-tenth of the amount of Chicago's rain, sleet and snow.
Phys.org / Ants alter their nest networks to prevent epidemics, study finds
Ants make a series of clever architectural adjustments to their nests to prevent the spread of disease, University of Bristol research has uncovered.
Phys.org / Generation of harmful slow electrons in water is a race between intermolecular energy decay and proton transfer
When high-energy radiation interacts with water in living organisms, it generates particles and slow-moving electrons that can subsequently damage critical molecules like DNA. Now, Professor Petr Slavíček and his bachelor's ...
Phys.org / Innovation in stone tool manufacture occurred independently in Europe and the Near East, says study
An analysis of stone tools found in Italy and Lebanon indicates that around 42,000 years ago, modern humans in Europe and the Near East took different approaches to toolmaking.
Phys.org / World's largest rays may be diving to extreme depths to build mental maps of vast oceans
Many marine species are no strangers to the depths of the oceans. Some animals, like certain sharks, tuna, or turtles, routinely perform extreme dives, whereas for other species, such behavior has been observed less frequently.
