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Phys.org / Physicists have measured 'negative time' in the lab
As Homer tells us, Odysseus made an epic journey, against the odds, from Troy to his home in Ithaca. He visited many lands, but mostly dwelt with the nymph Calypso on her island. We can imagine that his wife, Penelope, would ...
Phys.org / Frozen-in gravity: A new way to understand the evolution of spacetime dynamics
The concept of spacetime, first described in Einstein's theory of general relativity, has since been widely studied by many physicists worldwide. Spacetime is described mathematically as a four-dimensional (4D) continuum ...
Phys.org / Thinner than hair and stretchable like rubber, this new shield tackles a space-age problem in one layer
Shielding materials are essential in key modern industrial settings—such as spacecraft, nuclear power plants, semiconductor equipment, and advanced medical devices—to protect both equipment and personnel from electromagnetic ...
Science X / Coffee doesn't just wake you up—a key biological pathway illuminates widespread health effects
For decades, research has linked coffee consumption to longer life and lower risk of chronic disease—but exactly how those benefits occur has remained unclear. Now, new research from the Texas A&M College of Veterinary Medicine ...
Phys.org / NASA connects little red dots with Chandra and Webb
A newly discovered object may be a key to unlocking the true nature of a mysterious class of sources that astronomers have found in the early universe in recent years. A "X-ray dot" found by NASA's Chandra X-ray Observatory ...
Phys.org / Drivers help study road-trip mystery: what became of bug splats?
Long an emblem of the summer road trip, squashed bugs on the car have become less numerous over the years, many people say—causing concern about the health of the world's insect populations.
Phys.org / How a free flow of information can amplify incorrect ideas
The idea that information should flow freely is deeply embedded in the design of social media. The assumption is that the more information is produced and shared, the better. However, simulations by a team of scientists including ...
Phys.org / Europe's seafloor fishing looks profitable until societal costs turn the math upside down
The first study to measure the full economic value of bottom trawling in Europe's waters calculates that the destructive fishing practice imposes up to €16 billion annually in net costs to society. The research is published ...
Phys.org / DESI-HVS1 is an old hypervelocity star ejected from the galactic center, observations suggest
Chinese astronomers report the discovery of DESI-HVS1, which may be an old metal-poor hypervelocity star of galactic center origin. The finding, based on the data from the Dark Energy Spectroscopic Instrument (DESI) and ESA's ...
Phys.org / A lost galaxy called 'Loki' may be hiding inside the Milky Way
The Milky Way galaxy grew into its current form with the help of smaller galaxies over time, which it has "consumed" or merged with. Astronomers are able to pick out which stars in the Milky Way came from other galaxies by ...
Phys.org / Gold digging is not exclusive to women: New study uncovers common attributes
Gold digging is often seen as a female behavior focused on exploiting wealthier partners for material gain, but science suggests this stereotype may be too narrow. Past studies have shown both men and women value resources ...
Phys.org / 5th-century Belgian burial with 'scrap metal' may reveal missing link between Roman and Merovingian monetary systems
A study published in the journal Britannia analyzed coins and metal items found in an early 5th-century AD burial in Oudenburg, Belgium. The burial occurred around the same time that base metal coins ceased arriving in northwestern ...
