
Phys.org · 实时热榜
- 01An entire world of fungi nearly a third of a mile underground could affect carbon storage estimates
Hundreds of feet below Earth's surface, rocks and water teem with fungi and support complex ecosystems of tiny organisms, according to a University of Michigan study that finds fungi are far more abundant deep underground than researchers previously thought.
最高第 1 名01:09 达到01:09 首次观测上榜04:21 观测离榜累计约3小时12分 - 02Ancient DNA reveals Ice Age humans targeted female woolly mammoths
Analyzing ancient DNA from more than 500 mammoth bones, an international team of researchers found that Ice Age humans selectively targeted female woolly mammoths. The results of the study, published in Current Biology, show that, in contrast to the sex ratio among naturally occurring woolly mammoth remains, large bone accumulations associated with ancient human activity are dominated by females.
最高第 1 名23:01 达到23:01 首次观测上榜当日结束时仍在榜累计约48分钟 - 03Chicken kidney sponge could be 'outstanding' at cleaning up polluted ports
Ports rank among the most disturbed marine environments. Pollutants like trash, oil and toxins from antifouling paints tend to accumulate in enclosed harbors. Invasive species arriving in ballast water may displace native wildlife, while ship propellers, sonars and dredging cause noise pollution that can interfere with animal communication. There is thus a great need for effective ways to clean up harbors. One promising method is renaturalization, in which hardy species that can survive under th
最高第 1 名12:05 达到12:05 首次观测上榜23:49 观测离榜累计约11小时44分 - 04The trillion-dollar question behind corporate net-zero pledges
Corporate climate spending now steers trillions of dollars in transition finance worldwide. Does it drive genuine climate action? Research shows that accounting flexibility alone can make a company's reported emissions vary by roughly a factor of two—enough to appear either as a climate leader or a laggard. A new perspective in Nature Sustainability proposes developing industry-specific net-zero blueprints to close that gap.
最高第 1 名17:09 达到17:09 首次观测上榜当日结束时仍在榜累计约6小时40分 - 05Shipwreck cargo reveals surprising global trade secrets of the 1600s
Using cargo recovered from one of Australia's most infamous shipwrecks, new Curtin University-led research has revealed how surprisingly sophisticated global supply chains helped source and transport construction materials in the 17th century.
最高第 1 名00:00 达到当日首次采集时已在榜03:01 观测离榜累计约3小时2分 - 06Physicists create Bose–Einstein condensate from ultracold polar molecules
Bose–Einstein condensates are states of matter that form when particles called bosons are cooled to temperatures that are only a fraction of a degree above absolute zero (i.e., 0 Kelvin [-460°F]). In these states, particles occupy the same quantum state and exhibit interesting collective behaviors, essentially behaving as if they were a single "super-particle."
最高第 1 名19:49 达到19:49 首次观测上榜当日结束时仍在榜累计约4小时 - 07Non-monogamy may reduce jealousy overall, but feeling less desirable can still strain relationships
Comparing yourself with your partner is more common than you'd think. Psychologists even have a term for it: mate value discrepancy (MVD), which is the gap between how attractive, smart or successful each partner feels compared with the other.
最高第 1 名00:05 达到00:05 首次观测上榜03:33 观测离榜累计约3小时28分 - 08From single projection to many possibilities: A new tool for climate risk assessment
Assessing how climate change will affect different regions usually requires running a complex chain of models. While this approach provides valuable insights, it is expensive and can cover only a limited set of scenarios and model runs. Together with partners, IIASA researchers have developed a faster alternative that uses available projections from Earth system or climate impact models to generate new regional climate and impact projections while capturing the uncertainty essential for understa
最高第 1 名14:13 达到14:13 首次观测上榜当日结束时仍在榜累计约9小时36分 - 09Humanoid classroom robots show potential as teaching assistants, not teacher replacements
A New York school district made global headlines this week for plans to trial a humanoid robot named "Sally" in high school classrooms.
最高第 1 名07:49 达到07:49 首次观测上榜23:01 观测离榜累计约15小时12分 - 10Quantum in the palm of your hand: The evolution of superconducting qubits
Electrons zipping through transistors, powering the screens on our smartphones. Light zooming from distant stars to Earth, moving faster than anything else in the universe. Protons enabling MRI machines to analyze people's injuries.
最高第 1 名11:33 达到11:33 首次观测上榜23:49 观测离榜累计约12小时16分 - 11Three-dimensional visualization of nanoplastic distribution in the neonatal mouse brain
Nanoplastics—plastic particles smaller than one micrometer—are generated through the degradation and abrasion of plastic products and are increasingly detected in food, drinking water, air and biological tissues. Although the presence of plastic particles in animals and humans is well-established, determining how nanoplastics are distributed within complex organs, such as the brain, remains challenging.
最高第 1 名09:41 达到09:41 首次观测上榜23:33 观测离榜累计约13小时52分 - 12More than half of England 'officially in drought': UK govt
Just over half of England has been declared to be in drought after "record-low rainfall and exceptionally high temperatures," the U.K. government said Wednesday.
最高第 1 名00:21 达到00:21 首次观测上榜03:49 观测离榜累计约3小时28分 - 13Nepal's tiger numbers climb 20 percent to estimated 429: Survey
Nepal's tiger population has risen by roughly 20% in the past four years to an estimated 429, officials said Wednesday, a conservation milestone despite challenges from human-wildlife conflict.
最高第 1 名01:25 达到01:25 首次观测上榜04:53 观测离榜累计约3小时28分 - 14Managing ecosystems under climate change using nature's hidden design
Researchers at the Centre for Ecosystem Management (CEM), together with scientists from the Department of Fisheries and Oceans, Cornell University, Great Lakes Fishery Commission and the Ontario Ministry of Natural Resources, have published a paper showing that ecosystems become more resilient to environmental change through "portfolio effects" operating across multiple levels of ecological organization.
最高第 1 名00:53 达到00:53 首次观测上榜04:05 观测离榜累计约3小时12分 - 15Early Cambrian fossil uncovers key buoyancy structure at the dawn of cephalopod evolution
Extant and ancient cephalopods—including octopuses, squids, extinct ammonites, cuttlefish and nautiluses—have all had to solve the problem of buoyancy, whether they have hard external shells or not.
最高第 1 名01:41 达到01:41 首次观测上榜05:09 观测离榜累计约3小时28分 - 16Gonorrhea's own enzyme triggers therapy against multidrug-resistant strains in lab tests
Scientists at the Universities of Liverpool and Oxford have developed a promising new way to kill antibiotic-resistant strains of Neisseria gonorrhoeae, the bacterium that causes gonorrhea, using a targeted therapy that is activated at the bacterial surface while minimizing damage to human cells.
最高第 1 名02:29 达到02:29 首次观测上榜07:01 观测离榜累计约4小时32分 - 17Gold-MXene catalyst converts nitrate to ammonia using sunlight and 1.5 volts
Plants need nitrogen fertilizers, which are usually ammonia-based. Ammonia is therefore one of the most important chemical products. However, its production is currently extremely energy-intensive. An international team from TU Wien and Soochow University in China has developed a novel catalyst that can convert nitrate from wastewater into ammonia much more efficiently than before—powered by sunlight and about 1.5 volts.
最高第 1 名03:01 达到03:01 首次观测上榜08:05 观测离榜累计约5小时4分 - 18First electrically pumped perovskite polariton laser diode solves a decades-long challenge
Resolving a long-standing problem in semiconductor physics and optoelectronics, a team of researchers from Skoltech—a VEB.RF group institution—and their colleagues from ITMO University and HSE University have for the first time demonstrated direct electrical pumping of a polariton laser based on a solution-processed halide perovskite microcrystal. Published in Nature, this solution to a decades-long technological challenge ushers in inexpensive nonepitaxial laser diodes operating under continuou
最高第 1 名03:33 达到03:33 首次观测上榜11:33 观测离榜累计约8小时 - 19Icelandic fish 'hot tubs' reveal genetic adaptations to warming—and unexpected overeating
New research, led by the University of Glasgow reveals that adaptation to warmer waters causes fish to display a range of behavioral and biological differences, including obesity, overeating and lower metabolism.
最高第 1 名04:05 达到04:05 首次观测上榜17:09 观测离榜累计约13小时4分 - 20A faster, cheaper way to map the world's forests with AI
New research from the University of Cambridge offers an easy and readily available solution using AI and satellite data. In a paper published in the journal Science of Remote Sensing, researchers used embeddings by Tessera, a geospatial foundation model, to successfully map tree species across the Trentino region of the Italian Alps.
最高第 1 名03:49 达到03:49 首次观测上榜16:21 观测离榜上榜 2 次(重入 1 次)累计约10小时40分 - 21Stable DNA building blocks enable faster oligonucleotide synthesis without oxidation
The chemical synthesis of oligonucleotides (ONs) is central to modern molecular biology, diagnostics and nucleic acid therapeutics. While demand for high-quality ONs is increasing, the conventional synthetic method has long-standing efficiency challenges. Widely adopted P(III)-phosphoramidite-based ON synthesis requires an oxidation step after every nucleotide coupling cycle and uses moisture-sensitive building blocks, adding complexity to the workflow and slowing the process.
最高第 1 名04:21 达到04:21 首次观测上榜19:01 观测离榜累计约14小时40分 - 22A step closer to artificial organs: UV light shapes arteriole-scale hydrogel vessels
The creation of fully artificial organs is a sci-fi dream, and researchers in Japan may have brought it one step closer to reality by developing a new photofabrication technique (i.e., a light-controlled synthetic method) for constructing arteriole-scale tubular hydrogels. Their research is published in the journal Advanced Materials.
最高第 1 名04:53 达到04:53 首次观测上榜19:49 观测离榜累计约14小时56分 - 232D quantum memory device reaches single-electron limit of information storage
Most electronic memory storage devices require the ability to trap large numbers of electrons for each bit of memory. In an ideal world, however, it would take only one electron. This would reduce space requirements and power consumption for devices. Now, a team in China has realized this goal with an ultrathin device capable of minimizing the stray capacitance that plagued earlier attempts. The new study, published in Science, describes how this novel device has overcome challenges in implement
最高第 1 名02:45 达到02:45 首次观测上榜07:49 观测离榜累计约5小时4分 - 24The oceans near Australia may be the best places to fertilize for removing carbon dioxide
Deploying ocean iron fertilization—a strategy for carbon dioxide capture—in higher latitudes rather than near the equator could reduce environmental impacts while still achieving removal of carbon dioxide from the atmosphere, according to a modeling study published in Nature. The findings offer insight into best practices for maximizing carbon dioxide removal while reducing potential ecological trade-offs typically associated with iron fertilization.
最高第 1 名05:09 达到05:09 首次观测上榜20:05 观测离榜累计约14小时56分 - 25A mechanically tunable molecular switch for circularly polarized light emission
Over the past few decades, scientists have become increasingly interested in developing materials that do not simply withstand mechanical forces but instead respond to them in useful, detectable ways. For example, it is now possible to engineer materials that signal when they are under stress through changes in color or brightness. This growing domain, sometimes called mechanochromic or mechanoresponsive materials science, has found applications in structural sensors and advanced optical technol
最高第 1 名05:25 达到05:25 首次观测上榜20:53 观测离榜累计约15小时28分 - 26What Godzilla can teach us about Donald Trump
He tramples things without intending to. He was created by us. He never permanently goes away. In recent years, metaphorical representations of Donald Trump as the Japanese kaiju Godzilla have become common. Now, a paper published in De Gruyter Brill's The Forum argues that the Showa period Godzilla films (1954–75) can be read as an allegory of Trump's political career from 2016–24.
最高第 1 名02:13 达到02:13 首次观测上榜06:45 观测离榜累计约4小时32分 - 27Climate shapes vegetation patterns across Yellow River Basin
Climate drives vegetation patterns across the Henan section of China's Yellow River Basin, research in the International Journal of Environmental Engineering shows. However, expanding agriculture and urbanization have a detrimental effect on plant diversity in heavily developed areas, according to the study. The findings are based on satellite observations and ecological modeling of the region.
最高第 1 名05:41 达到05:41 首次观测上榜21:09 观测离榜累计约15小时28分 - 28Keeping stem cells in check: A new mechanism by which cell junction proteins regulate tissue homeostasis
In many animal tissues, stem cells continually divide to create new cells that replace old or damaged ones. However, this capacity requires strict regulation, as uncontrolled stem cell proliferation can disrupt tissue homeostasis and contribute to tumorigenesis.
最高第 1 名06:29 达到06:29 首次观测上榜21:41 观测离榜累计约15小时12分 - 29What sheep's teeth can tell us about life in a medieval Kazakhstan town
You might not often think about the molars of livestock, but everything from the grass they eat to the water they drink can tell a story about how people lived centuries ago. An international collaboration led by University of Michigan researchers examined herd management in medieval Kazakhstan using isotopes embedded in the enamel of sheep's molars. They found that people living in the arid region fine-tuned their animal-management strategies to succeed in a challenging environment.
最高第 1 名06:13 达到06:13 首次观测上榜21:09 观测离榜累计约14小时56分 - 30Little red dots may mark temporary black hole phase
Since their discovery by NASA's James Webb Space Telescope in 2022, little red dots (LRDs) have been the subject of great interest to astronomers. Understanding the nature of these extremely distant, compact red sources has been a puzzling scientific endeavor.
最高第 1 名03:17 达到03:17 首次观测上榜08:53 观测离榜累计约5小时36分 - 31Machine learning LDL-C equation comparable to original Martin-Hopkins
A simplified machine learning-based low-density lipoprotein cholesterol (LDL-C) equation provides results that are comparable to the original Martin-Hopkins equation, according to a study published online July 15 in JAMA Cardiology.
最高第 1 名08:53 达到08:53 首次观测上榜16:05 观测离榜累计约7小时12分 - 32One of industry's toughest lignin byproducts could become feedstock for valuable chemicals
The pulp and paper industry, which manufactures everything from tissue paper to cardboard, also generates a significant yet often overlooked byproduct—a complex polymer called lignin. Around 100 million tons of lignin are produced each year. Despite being the largest natural source of aromatic carbon on the planet, most of it is burned for energy. This is due to its complex structure, which is notoriously difficult to process. Researchers are exploring ways to leverage industrial lignin by devel
最高第 1 名06:45 达到06:45 首次观测上榜22:13 观测离榜累计约15小时28分 - 33Lake ice loss could accelerate after winter temperatures cross critical thresholds
For lakes across the Northern Hemisphere, winter ice is more than a frozen surface. It is a seasonal regulator that shapes underwater ecosystems and energy balance. But as the planet warms, this frozen season is disappearing faster than expected.
最高第 1 名07:01 达到07:01 首次观测上榜22:29 观测离榜累计约15小时28分 - 34A climate resilience strategy to strengthen US seafood competitiveness
As the U.S. looks to expand domestic seafood production, a new University of Miami study argues that long-term competitiveness will depend on how well fisheries can withstand climate-driven disruptions. The study comes as NOAA advances new efforts to increase domestic seafood production and suggests that producing more seafood will require investments that reduce disruptions to the nation's fisheries and seafood supply chains.
最高第 1 名07:33 达到07:33 首次观测上榜22:45 观测离榜累计约15小时12分 - 35The role of community energy in mediating the sustainable energy transition
Community energy projects, actively governed and managed by community members, play an essential role in advancing just energy transitions, for example, by providing energy in remote areas, facilitating the adoption of renewable technologies and building resilient electricity networks. However, their adoption remains limited. How does community energy work in practice, and how can it become more widespread?
最高第 1 名08:05 达到08:05 首次观测上榜23:33 观测离榜累计约15小时28分 - 36Rain dampens France fire, as Spain reports 'almost no flames'
Firefighters in France on Thursday were hopeful a massive forest fire was no longer spreading, as Spain said there were "almost no flames" left after a similar blaze near Madrid.
最高第 1 名16:21 达到16:21 首次观测上榜当日结束时仍在榜累计约7小时28分 - 37Meet the astronomer digging into the Milky Way's 'fossils'
Amina Helmi's passion for the Milky Way is clear as soon as one steps into her small office at the University of Groningen, in the north of the Netherlands.
最高第 1 名16:37 达到16:37 首次观测上榜当日结束时仍在榜累计约7小时12分 - 38Ancient turtle hunting could inform modern conservation throughout southern Caribbean
Despite the promise of rebounding green sea turtle numbers, many sea turtle populations continue to flounder under the pressures of changing climates, overfishing and urbanization.
最高第 1 名19:01 达到19:01 首次观测上榜当日结束时仍在榜累计约4小时48分 - 39Learning more about Australia's remote Northwest reefs with Indigenous rangers
Offshore Northwest reefs Rankin Bank and Glomar Shoal are remote and little known, but Australian Institute of Marine Science (AIMS) researchers are using technology and people power to help us understand them better.
最高第 1 名19:33 达到19:33 首次观测上榜当日结束时仍在榜累计约4小时16分 - 40Cool it: AI-driven solutions to lower urban heat need community buy-in to work
A new framework to cool urban areas which integrates AI-driven technical solutions with cooling schemes that are acceptable and doable for the host community, has been proposed by QUT Urban AI Hub researchers.
最高第 1 名20:05 达到20:05 首次观测上榜当日结束时仍在榜累计约3小时44分 - 41Tread softly: A new 'light touch' way to detect kauri dieback
Kauri dieback is one of the most serious threats facing Aotearoa New Zealand's kauri forests. The disease is caused by a soil-dwelling microbe, Phytophthora agathidicida, which infects kauri roots and eventually kills the tree. There is no cure, so finding infected trees early and managing them well is critical to protecting the kauri that remain.
最高第 1 名20:21 达到20:21 首次观测上榜当日结束时仍在榜累计约3小时28分 - 42First dogs in the UK treated with new bee and wasp venom immunotherapy
The University of Glasgow's Small Animal Hospital is the first in the UK to use a treatment for dogs suffering from serious allergic reactions to bee and wasp stings. The treatment, Hymenoptera Venom Immunotherapy (VIT), has now been successfully used on a number of patients, and while the approach is still relatively new, clinicians believe it offers a way to prevent recurrent anaphylaxis in dogs.
最高第 1 名20:53 达到20:53 首次观测上榜当日结束时仍在榜累计约2小时56分 - 43May, June heat waves caused 2,877 extra deaths in England: govt
Record-breaking heat waves in May and June led to an estimated 2,877 excess deaths in England, the UK Health Security Agency said Wednesday.
最高第 1 名21:09 达到21:09 首次观测上榜当日结束时仍在榜累计约2小时40分 - 44An atom-holography microscope for direct visualization of 3D atomic arrangements in nanoscale regions
A collaborative research group led by Hiroshi Daimon, a specially appointed research fellow at the Institute for Molecular Science, National Institutes of Natural Sciences, has developed an "atom-holography microscope" capable of directly observing three-dimensional atomic arrangements in nanoscale regions by combining the electron beam of a scanning electron microscope (SEM) with CoDELMA, a newly developed two-dimensional display-type analyzer.
最高第 1 名21:41 达到21:41 首次观测上榜当日结束时仍在榜累计约2小时8分 - 45New research shows the Golgi complex is involved in DNA repair control
Our DNA is under constant threat. Chemicals, radiation and the everyday errors of cell division all damage it, and if left unrepaired, this can lead to diseases such as cancer. Cells invest heavily in finding and fixing these errors. A new study from EMBL Heidelberg's Pepperkok Group finds that part of the control over this repair process lies in an unexpected place—outside the nucleus, at the Golgi complex.
最高第 1 名22:13 达到22:13 首次观测上榜当日结束时仍在榜累计约1小时36分 - 46Tracking satellites and space debris using radio antennae
Every year, thousands of satellites are launched into orbit around our planet. The result is an increasingly congested "space" above Earth populated by equipment that provides services to the surface. At the same time, these satellites affect ground-based astronomy and create the potential for damage when they eventually fall through Earth's atmosphere to the surface. In addition, near-Earth space hosts old rocket bodies and other materials (cameras, gloves, etc.) left in orbit by past missions.
最高第 1 名23:33 达到23:33 首次观测上榜当日结束时仍在榜累计约16分钟 - 47Scabies can kill animals like the beloved wombat. What's the best way to diagnose it?
Constant scratching, bumpy skin and tufts of lost fur. Those are just some of the signs that an animal has scabies, a severe and potentially fatal skin disease caused by tiny mites (Sarcoptes scabiei) that burrow into the skin.
最高第 1 名23:49 达到23:49 首次观测上榜当日结束时仍在榜累计约0分钟 - 48Hiroshima blast debris reveals a previously unknown alloy
The Hiroshima blast on Aug. 6, 1945, was one of the most devastating events in human history. Like all nuclear detonations, it created fleeting moments of extreme heat, pressure, mixing and cooling. These conditions can briefly produce materials that could never form under normal circumstances.
最高第 1 名22:45 达到22:45 首次观测上榜当日结束时仍在榜累计约1小时4分 - 49Does misinformation on Facebook and Instagram change what you believe?
For years, social media companies have faced pressure from users and government watchdogs to stop misinformation from distorting elections, deepening political divisions and undermining Americans' trust in institutions. But what if dramatically reducing people's exposure to unreliable sources that frequently spread misinformation doesn't actually change what they believe?
最高第 1 名22:29 达到22:29 首次观测上榜当日结束时仍在榜累计约1小时20分 - 50In seconds, fiber optic cables detect earthquake size
Scientists have discovered a new way to determine how big an earthquake may become just seconds after it begins. In a new study published in Nature Communications, researchers from the U.S. Geological Survey (USGS) and Cal Poly Humboldt used signals picked up by fiber-optic cables—the same ones that deliver high-speed internet—to accurately estimate when a moderate to large earthquake is underway using data from the first four seconds of seismic wave arrivals.
最高第 2 名00:21 达到00:21 首次观测上榜03:33 观测离榜累计约3小时12分



































