One of the longest stellar dimming events ever observed was likely caused by the gigantic saucer-like rings of either an unseen brown dwarf or "super-Jupiter" blocking its host star's light, astronomers say. For decades, the star—which sits 3,200 light-years from Earth and is about twice as big as our sun—had been observed as stable, but at the end of 2024 it faded dramatically. [...]
A multinational research team led by Professor Tong Zhang from the Department of Civil Engineering, Faculty of Engineering at the University of Hong Kong (HKU Engineering), in collaboration with an international team, has developed a new framework to assess and track antimicrobial resistance (AMR) connectivity across human, animal, and environmental sectors. The study systematically examines the connectivity of AMR and proposes an assessment framework along with mitigation strategies. [...]
NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects from more than 450 million galaxies and 100 million stars in the Milky Way over its two-year mission will help scientists explore the origins of the universe and its evolution over time. But that doesn't mean scientists can't occasionally take a break from investigating the deepest cosmological mysteries to take a peek at an interstellar object (ISO), right? [...]
Current global climate models (GCMs) support with high confidence the view that rising greenhouse gases and other anthropogenic forcings account for nearly all observed global surface warming—slightly above 1 °C—since the pre-industrial period (1850–1900). This is the conclusion presented in the IPCC's Sixth Assessment Report (AR6) published in 2021. [...]
Phosphorus is essential for plant growth and ecosystem productivity. In many natural forests, plants rely on soil microbes to release bioavailable phosphorus from organic matter. The PhoD gene, which encodes the key enzyme alkaline phosphatase, is a central marker for this microbial process. Its role in fertilized agricultural systems is well known, but its distribution and drivers in natural forest ecosystems have remained unclear. [...]
When severe weather strikes, the National Weather Service's (NWS) Office of Water Prediction (OWP) makes critical flood forecasts with the National Water Model. Despite improvements over time, the model's performance has plateaued in recent years, leaving researchers from the federal government, academia, and private industry searching for a better solution. [...]
When a cell divides, it performs a feat of microscopic choreography—duplicating its DNA and depositing it into two new cells. The spindle is the machinery behind that process: It latches onto chromosomes (where DNA is stored) and separates them so they can settle into their new homes. This tricky process can sometimes go wrong, causing infertility, genetic disorders, or cancer. [...]
How do the different parts of an adult plant communicate with each other when it suffers an injury, is waterlogged, burnt or exposed to environmental stress? Today we can answer this question thanks to an innovative optical imaging system developed by the Università degli Studi di Milano (University of Milan) together with the Politecnico di Milano. The study is published in Science Advances. [...]
From table salt to snowflakes, and from gemstones to diamonds—we encounter crystals everywhere in daily life, usually cubic (table salt) or hexagonal (snowflakes). Researchers from Noushine Shahidzadeh's group at the UvA Institute of Physics now demonstrate how mesmerizing spherical crystal shapes arise through structures called spherulites. [...]
Recent research suggests that Saturn's bright rings and its largest moon, Titan, may have both originated in collisions among its moons. While Cassini's 13-year mission expanded our understanding of Saturn, the discoveries of its young rings and Titan's rapidly shifting orbit have raised new questions. [...]
Researchers at the University of Bayreuth have developed a method using artificial intelligence that can significantly speed up the calculation of liquid properties. The AI approach predicts the chemical potential—an indispensable quantity for describing liquids in thermodynamic equilibrium. The researchers present their findings in a new study published in Physical Review Letters. [...]
The element cobalt is considered a typical ferromagnet with no further secrets. However, an international team led by HZB researcher Dr. Jaime Sánchez-Barriga has now uncovered complex topological features in its electronic structure. Spin-resolved measurements of the band structure (spin-ARPES) at BESSY II revealed entangled energy bands that cross each other along extended paths in specific crystallographic directions, even at room temperature. As a result, cobalt can be considered as a highly tunable and unexpectedly rich topological platform, opening new perspectives for exploiting magnetic topological states in future information technologies. [...]
What if cattle were selected not only for their productivity, but also for their resistance to disease? A study conducted by a team of scientists combining systemic immunology, genomics and machine learning provides a better understanding of what shapes animals' immunity, even before they fall ill. The work is published in the journal Nature Communications. [...]
Geographic information system (GIS) maps help researchers, policymakers, and community members see how environmental risks are spread throughout a given region. These types of interactive, layered maps can be used for storytelling, education, and environmental activism. When community members are involved in their use and creation, GIS maps can also be a tool for equity. [...]
A new study reports that climate warming can increase soil carbon accumulation in boreal Sphagnum peatlands by boosting plant productivity, protecting iron, and inhibiting microbial decomposition. These responses contrast sharply with warming-enhanced soil carbon mineralization—the process by which carbon is released as CO2—in boreal forests and tundra. Together, these contrasting processes highlight the vital yet often overlooked role of Sphagnum peatlands in counteracting boreal carbon loss under future warming. [...]
Hurricane Helene, one of the deadliest hurricanes in US history, did not affect people's views on climate change or their intentions to vote for politicians advocating stricter climate policies. This is shown in a new study from the University of Gothenburg. "Attitudes unchanged: no support for increased climate change beliefs, concerns, or voting intentions after Hurricane Helene" is published in Environmental Research Communications. [...]
A national survey of the four supply-chain sectors involved in the production and sale of flowers and ornamental plants shows that sustainability practices—those already implemented and those planned for the future—differ by sector. The findings could provide a roadmap of specific needs to help all sectors reach sustainability goals. [...]
If humankind is to explore deep space, one small passenger should not be left behind: microbes. In fact, it would be impossible to leave them behind, since they live on and in our bodies, surfaces and food. Learning how they react to space conditions is critical, but they could also be invaluable fellows in our endeavor to explore space. [...]
Research at the University of Jyväskylä (Finland) reveals that autonomous parvoviruses, such as canine parvovirus, are highly capable of affecting the internal balance of the nucleolus. The results provide new basic information about the interaction between viruses and nucleolus. The study is published in Communications Biology. [...]
A decade-long study has revealed that rising atmospheric CO₂ and warming work together to reduce the availability of phosphorus in rice-upland crop rotation systems, potentially threatening future food security. The research, which was led by scientists from the Institute of Soil Science of the Chinese Academy of Sciences, shows that warming plays a dominant role in redirecting phosphorus into less accessible soil pools. [...]
Researchers at the Helmholtz Institute for One Health (HIOH), a site of the Helmholtz Centre for Infection Research (HZI), together with an interdisciplinary team of partners, have identified the fire-footed rope squirrel (Funisciurus pyrropus) as a likely natural reservoir of the monkeypox virus (MPXV). Their study was published today in Nature. The discovery was based on the detailed investigation of an mpox outbreak among wild sooty mangabeys (Cercocebus atys) in Taï National Park, Côte d'Ivoire. Scientists combined ecological, behavioral, and molecular evidence to document, for the first time, the interspecies transmission of MPXV in the wild, from fire-footed rope squirrels to sooty mangabeys. [...]
Hydrogels are soft, jelly-like materials that can absorb large amounts of water. They are widely used in medical technologies such as contact lenses and wound dressings, and are also a staple of laboratory research, where they are used to grow bacteria. But scientists have long struggled to explain why some hydrogels readily support bacterial growth while others appear to suppress it. [...]
The soil microbiome is critical for the ecosystem, and agricultural practices that promote microbial diversity can support plant health and help protect against pests. But it is unclear which practices are most beneficial, and what motivates farmers to choose them. [...]
Probing the vibration of atoms provides detailed information on local structure and bonding that define material properties. Tip-enhanced Raman spectroscopy (TERS) offers extremely high resolution to probe such vibrations. Krystof Brezina and Mariana Rossi from the MPI for the Structure and Dynamics of Matter (MPSD), and Yair Litman from the MPI for Polymer Research (MPIP), have demonstrated that realistic, first-principles simulations are essential for interpreting TERS images of molecules and materials on surfaces. Their approach reveals how interactions with metallic substrates reshape vibrational imaging at the nanoscale. The work has now been published in ACS Nano. [...]
New research shows the effects of marine heat waves on sponges could be much more severe as temperatures rise. More intense marine heat waves as a result of climate change could lead to the mass loss of a sponge species found around Aotearoa New Zealand, a new study suggests. [...]
Researchers at the University of Huddersfield have used ancient DNA to reveal that hunter-gatherers in one part of Europe survived for thousands of years longer than anywhere else on the continent—and have uncovered the pivotal role of women in the process. The research was carried out as part of an international network of geneticists and archaeologists led by David Reich at Harvard University, and is published in Nature. [...]
Research results from Innsbruck, Schwabmünchen, and Düsseldorf demonstrate how the most widely used green phosphors in commercial LEDs can be replaced by representatives of an entirely new class of compounds. Green luminescence, as required for ubiquitous white-light LEDs, currently originates mainly from phosphors with the well-known garnet structure. In times of high energy prices and political tensions that may restrict access to certain raw materials, having an alternative with a lower synthesis temperature and different chemical composition would be highly advantageous. [...]
A multi-institutional team of researchers led by Virginia Tech's Fralin Biomedical Research Institute at VTC has for the first time identified specific patterns of brain chemical activity that predict how quickly individual honey bees learn new associations, offering important insights into the biological basis of learning and decision-making. The study, published in Science Advances, found that the balance between the neurotransmitters octopamine and tyramine can predict whether a bee will learn quickly, slowly, or not at all, as they associate an odor with a reward. [...]
New archaeological evidence reveals that seabird guano—nutrient-rich bird droppings—was not only essential to boosting corn yields and supercharging agriculture in ancient Peru, but it may have been a driving force behind the rise of the Chincha Kingdom as one of the most prosperous and influential pre-Inca societies. [...]
Global climate mitigation scenarios shape real-world policy choices of who cuts emissions, who pays, and who benefits from climate action. A new IIASA-led essay published in PLOS Climate identifies how these influential tools address equity and justice, with implications for perceptions of fairness and public trust in climate policy. [...]
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