Every second, trillions of tiny parcels travel through your bloodstream—carrying vital information between your body's cells. Now, scientists at the Baker Heart and Diabetes Institute have opened this molecular mail for the first time, revealing its contents in astonishing detail. [...]
In a dimly lit office in a corner of the French National Institute for Art History, Sudanese archaeologist Shadia Abdrabo studies a photograph of pottery made in her country around 7,000 B.C. She carefully types a description of the Neolithic artifact into a spreadsheet. [...]
A planet's habitability is determined by a confluence of many factors. So far, our explorations of potentially habitable worlds beyond our solar system have focused exclusively on their position in the "Goldilocks Zone" of their solar system, where their temperature determines whether or not liquid water can exist on their surface, and, more recently, what their atmospheres are composed of. That's in part due to the technical limitations of the instruments available to us—even the powerful James Webb Space Telescope is capable only of seeing the atmospheres of very large planets nearby. [...]
A new study has revealed that successful environmental restoration is dependent on bridging the gap between ecological science and understanding the social and economic forces that drive change. [...]
Men are earning on average A$9,753 more than women each year in the form of performance bonuses, allowances and overtime pay. [...]
Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a short-lived window of opportunity opens. For just a few femtoseconds, before an electron fills the void in the lower energy level, a second photon has the chance to be absorbed by another core electron, creating a doubly excited state. [...]
On Heard Island, a remote Australian subantarctic island some 4,000 km southwest of Perth, scientists were concerned after observing high mortality rates in the elephant seal population. [...]
Since the 1950s, humanity has been searching for extraterrestrial life with increasingly sophisticated tools. But after decades of space probes, meteorite analysis, radio telescopes, and UFO investigations, what have we actually found? A new piece of analysis by a team led by Seyed Sina Seyedpour Layalestani from the Islamic Azad University in Iran has looked at the most compelling evidence to date; from ancient space rocks that fell to Earth carrying the building blocks of life itself. The paper is published in the International Journal of Astrobiology. [...]
Researchers from the Center for Food Policy at City St George's, University of London and Scotland's Rural College have set out six key areas for action that could help households cut down on food waste in a new comment article published in the journal Nature Human Behaviour. [...]
"Adapt or perish, now as ever, is nature's inexorable imperative," wrote H. G. Wells. This principle—that survival requires change—was mastered billions of years ago by single-celled organisms living in extreme heat. Over the past few decades, studies of these organisms' adaptive mechanisms have yielded revolutionary technologies—from rapid DNA replication (PCR) and the production of heat-resistant proteins to the generation of fuels and chemicals. [...]
One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer space. This idea suggests that prebiotic molecules—the building blocks of life—were transported here by asteroids or other celestial bodies. While these molecules have been found in meteorite samples that have crash-landed on Earth, the findings have been complicated by the possibility of contamination from our environment. [...]
This week, researchers reported that weight and health markers may rebound when patients stop using some of the new hormonal gastric inhibitory polypeptide drugs. A prototype device can restore lost olfactory sense. And a new universal law predicts how brittle objects shatter. [...]
In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of thermodynamics, which states that entropy remains positive and vanishes at extremely low temperatures, just like ordinary quantum systems. The finding provides strong evidence that black holes possess isolated ground states, a hallmark of quantum mechanical behavior. [...]
Past psychology and behavioral science studies have identified various ways in which people's acquisition of new knowledge can be disrupted. One of these, known as interference, occurs when humans are learning new information and this makes it harder for them to correctly recall knowledge that they had acquired earlier. [...]
Across Africa, distance education has become one of the most powerful forces for expanding access to higher learning. Open and distance learning institutions such as the Open University of Tanzania, the Zimbabwe Open University and the National Open University of Nigeria have joined long-standing providers like the University of South Africa in offering flexible study opportunities to millions of students who would otherwise be excluded from higher education. [...]
Have you ever seen a dog focused on nuzzling their expensive treat under a blanket, behind a couch cushion, or into a freshly dug hole in the backyard? You might think they are behaving like a paranoid doomsday prepper, but dogs aren't stockpiling their food due to anxiety about impending disaster. [...]
Marine litter is a serious environmental problem worldwide. Reducing it would require implementing a global monitoring system, agreeing on the use of common methods and protocols for data collection, and categorizing all components of marine debris. This involves a tremendous scientific, political, and social effort at the international level—one that cannot be carried out with the same intensity by all countries—given the magnitude of what is still unknown about the pollution of seas and oceans, particularly the deep ocean, where the vast majority of marine litter accumulates. [...]
The first Bible to feature a map of the Holy Land was published 500 years ago in 1525. The map was initially printed the wrong way round—showing the Mediterranean to the East—but its inclusion set a precedent which continues to shape our understanding of state borders today, a new Cambridge study argues. [...]
When three bright minds from different disciplines come together, something exceptional can happen. This is exactly what Prof. Patricia Hidalgo, Dr. Beatrix Santiago-Schübel, and Dr. Mercedes Alfonso-Prieto achieved at Forschungszentrum Jülich. In an interdisciplinary project, they investigated how cells recognize and remove defective calcium channels—work that could prove significant not only for basic science, but also for future therapies for neurodegenerative diseases. [...]
Writing using computers is a vital life skill. We are constantly texting, posting, blogging and emailing. [...]
According to an EHU study, lack of social support leads to increased loneliness of bisexual people. The work by Garikoitz Azkona of the Psychobiology group explored the relationship between sexual orientation and loneliness. It detected the highest level of loneliness among bisexual people, above that of homosexuals and heterosexuals. [...]
A new study published in Science Advances overturns a long-standing paradigm in climate science that stronger Northern Hemisphere summer insolation produces stronger tropical rainfall. Instead, a precisely dated 129,000-year rainfall reconstruction from a Cuban cave shows that the Caribbean often did the opposite, drying during intervals of intensified summer insolation. [...]
The mega genus Begonia (Begoniaceae) is widely distributed in tropical and subtropical areas. It is one of the largest plant genera in the world with over 2,100 species. In China, the number of Begonia species has increased to 304 (including subspecies, varieties and natural hybrid species) in recent years. [...]
Researchers at the Leibniz Center for Tropical Marine Research (ZMT) and the University of Bremen have studied the nutritional value of five edible seaweed species, including some lesser-known algae, and examined their potential for sustainable nutrition. The study, published in the journal Discover Food, shows that the analyzed species are rich in polyunsaturated fatty acids and have strong antioxidant properties as well as high protein and mineral contents. [...]
A strong geomagnetic storm in spring 2024 brought the northern lights unusually far south, as the auroral oval expanded well beyond its typical position. "I am surprised at how sparse the measurement network is, even though we know that the impacts of space weather can vary greatly from one area to another," says Doctoral Researcher Otto Kärhä from the University of Oulu, Finland. [...]
A cosmological simulation study by researchers from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences has systematically revealed, for the first time, how the interaction between dark matter and dark energy significantly influences the rotation and shape alignment of dark matter halos in the universe. [...]
What if a surface could instantly switch from sticky to slippery at the push of a button? By using electricity to control how ions and water structure at the solid liquid interface of self-assembled monolayers of aromatic molecules, researchers at National Taiwan University have created a molecular-scale adhesion switch that turns attraction on and off. [...]
When describing collective properties of macroscopic physical systems, microscopic fluctuations are typically averaged out, leaving a description of the typical behavior of the systems. While this simplification has its advantages, it fails to capture the important role of fluctuations that can often influence the dynamics in dramatic manners, as the extreme examples of catastrophic events such as volcanic eruptions and financial market collapse reveal. [...]
Researchers from the Institute of Applied Ecology of the Chinese Academy of Sciences and the University of California, Riverside, have investigated how the loss of forest soil gaseous nitrogen (NO, N2O, and N2) is affected by climate warming, highlighting the critical role of these gases in regulating forest nutrient cycling and ecosystem functioning. [...]
A new study led by the Yunnan Observatories of the Chinese Academy of Sciences has detected quasi-periodic oscillation (QPO) signals in an unusual gamma-ray burst (GRB) event. The findings are published in The Astrophysical Journal. [...]