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Medical Xpress / Cycling desks can drive students to the vending machine
Cycling desks, which let users pedal while typing, are gaining traction as a way to increase daily physical activity and reduce the health risks associated with a sedentary lifestyle. In recent years, they have become increasingly ...
Phys.org / Chandra resolves why black holes hit the brakes on growth
Astronomers have an answer for a long-running mystery in astrophysics: why is the growth of supermassive black holes so much lower today than in the past? A study using NASA's Chandra X-ray Observatory and other X-ray telescopes ...
Phys.org / Are humans naturally violent? New research challenges long-held assumptions
New research from the University of Lincoln, UK, is challenging a common assumption about the evolutionary origins of human violence, suggesting that everyday aggression does not inevitably lead to lethal conflict. The study, ...
Phys.org / Uncovering the evolutionary limits of the COVID-19 virus
A new paper in Genome Biology and Evolution, indicates that while the COVID-19 virus has developed rapidly since 2019, it has done so within limited genetic channels. These genetic limits have remained unchanged. Despite ...
Phys.org / What's for dinner? Tooth enamel reveals what early Mesopotamians really ate
We can learn a great deal about the lives and social structures of civilizations thousands of years ago by studying what they ate. While actual food remains are few and far between, scientists can reconstruct ancient menus ...
Phys.org / Moons orbiting wandering exoplanets could be habitable—with one catch
Provided they host thick, hydrogen-dominated atmospheres, moons orbiting free-floating exoplanets could retain much of the heat generated deep within their interiors by tidal forces. Led by David Dahlbüdding at the Max Planck ...
Phys.org / All 5 fundamental units of life's genetic code were just discovered in an asteroid sample
A new study reveals all five fundamental nucleobases—the molecular "letters" of life—have been detected in samples from the asteroid Ryugu.
Phys.org / What 'Project Hail Mary' gets right—and wrong—about astrophysics
"Project Hail Mary," the Ryan Gosling-led adaptation of the best-selling sci-fi novel from Andy Weir, is being praised for putting the science in science fiction. Although aliens, sun-draining microorganisms and galaxy-spanning ...
Phys.org / Tiny fossil eggs provide first physical evidence of Cretaceous bird-like dinosaurs in Korea
A major gap in South Korea's prehistoric record has been filled with the discovery of Onggwanoolithus aphaedoensis, the first known bird-type dinosaur eggs from the Cretaceous period of South Korea. The find, which is detailed ...
Phys.org / Continued monitoring of sunken Soviet submarine shows ongoing radioactive leakage, but little impact
In 1989, the Soviet nuclear-powered attack submarine Komsomolets sank to the bottom of the Norwegian Sea, along with its nuclear reactor and two nuclear warheads onboard. Komsomolets was constructed with a titanium alloy ...
Phys.org / JWST reveals most distant red galaxy yet at redshift 11.45
Using the James Webb Space Telescope (JWST), astronomers have discovered a new red galaxy at a redshift of approximately 11.45. The newfound galaxy, which received designation EGS-z11-R0, turns out to be the most distant ...
Tech Xplore / Asking AI to act like an expert can make it less reliable
To get the best out of AI, some users tell it to provide answers as if it were an expert. Others ask it to adopt a persona, such as a safety monitor, to guide its responses. However, this approach can sometimes hurt performance, ...
