
Phys.org · 实时热榜
- 01Rare blue optical transient points to possible new class of cosmic explosion
Chinese astronomers report the detection of a peculiar optical transient event that occurred in the center of a dwarf galaxy. The newly discovered event, designated AT2019ijn, is a fast-rising, slow-decaying blue optical transient with exceptionally bright radio emission. The finding was detailed in a paper published July 6 in The Astrophysical Journal Letters.
最高第 1 名20:48 达到20:48 首次观测上榜当日结束时仍在榜累计约2小时56分 - 02Study explores rare atom-containing natural products and their biomedical potential
Modern research on secondary metabolites from microbes, plants and marine organisms has revealed a remarkable diversity of chemical structures and bioactivities with broad applications in biotechnology, agriculture and medicine. Most natural products are composed of primary biogenic elements such as carbon, hydrogen, nitrogen and oxygen.
最高第 1 名20:16 达到20:16 首次观测上榜当日结束时仍在榜累计约3小时28分 - 03How did inbred brown tree snakes take over the island of Guam?
If you look up invasive species in a textbook, there's a good chance you'll find a picture of a brown tree snake. Native to Australia and the South Pacific, the brown tree snake arrived on Guam sometime after World War II, possibly by stowing away aboard cargo planes.
最高第 1 名02:08 达到02:08 首次观测上榜当日结束时仍在榜累计约21小时36分 - 04Ancient bones from smaller Maya communities reveal heavy reliance on maize and local subsistence patterns
Historians and archaeologists know that maize was a central food source and cultural symbol across the ancient Maya world, but much of what is known has come from studies focused on large Maya cities and elite burials.
最高第 1 名23:28 达到23:28 首次观测上榜当日结束时仍在榜累计约16分钟 - 05Herbivore species dynamics is key to grassland food web stability
Ecologists have long understood that biodiversity is paramount to ecosystem stability. Until now, however, most ecological research has focused on a single layer of ecological life at a time—for example, plant or animal communities. In reality, ecological systems have multiple layers that interact continuously. Plants are eaten by herbivores, herbivores are eaten by predators, and fluctuations at one trophic level, or an organism's specific position in the food chain, can ripple through the enti
最高第 1 名23:12 达到23:12 首次观测上榜当日结束时仍在榜累计约32分钟 - 06Wound odors may unlock better traps for flesh-eating New World screwworm
Jessica Metcalf's work stinks. Literally. But the Colorado State University professor's research may be key to protecting livestock and wildlife from a flesh-eating parasite.
最高第 1 名06:24 达到06:24 首次观测上榜当日结束时仍在榜累计约17小时20分 - 07Research sheds light on migration, lifestyle, health and social status in the medieval metropolis Ypers
Researchers from the Vrije Universiteit Brussel (VUB) are playing a key role in the summer exhibition wONDERLAND at the Yper Museum. Thanks to interdisciplinary research on more than 1,000 excavated skeletons, they have succeeded in giving the anonymous medieval city dweller a face and a voice once again after centuries.
最高第 1 名09:36 达到09:36 首次观测上榜当日结束时仍在榜累计约14小时8分 - 08Study explores the hedging capability of cryptocurrencies in turbulent markets
The rapid growth of sustainable finance in recent years has fueled interest in green investment, ranging from green bonds and environmental, social and governance (ESG) funds to energy-efficient cryptocurrencies. While these assets are often grouped under the broader umbrella of green finance, their interaction during periods of market stress remains largely unexplored.
最高第 1 名04:32 达到04:32 首次观测上榜当日结束时仍在榜累计约19小时12分 - 09Community context shapes corporate response to violence in street protests
When violence takes place during street protests, how do corporate leaders respond? According to new research by Forrest Briscoe, professor of organizational behavior at the ILR School, the answer depends on other community characteristics that people can use to help interpret the reasons for that violence. In particular, Briscoe focused on whether the community has a long history of protests turning violent regardless of the issue being protested—and, separately, whether the community has a his
最高第 1 名00:04 达到00:04 首次观测上榜20:48 观测离榜累计约20小时43分 - 10Io's volcanic output offers a 40‑day forecast of plasma density in Jupiter's magnetosphere
A careful statistical comparison of observations recorded by NASA's Juno mission and the Planetary Science Institute's Io Input Output observatory (IoIO) shows that IoIO observations reliably predict the density of Jupiter's plasma disk, an important part of Jupiter's magnetosphere, according to a new Geophysical Research Letters paper co-authored by Planetary Science Institute Senior Scientist Jeff Morgenthaler. Jian-Zhao Wang of the University of Colorado Boulder is the paper's lead author.
最高第 1 名00:00 达到当日首次采集时已在榜11:12 观测离榜累计约11小时12分 - 11Magnetic clues inside atomic nuclei help explain how elements form in stars
A scientific team led by Facility for Rare Isotope Beams, or FRIB, has identified the origin of a mysterious excess of low-energy gamma rays emitted by the nucleus zinc-70. They found that the excess is caused by magnetic transitions within the nucleus. The study, "Magnetic Character of the Low-Energy Enhancement in 70Zn," published in Nature, sheds light on a long-standing puzzle in nuclear physics and has far-reaching implications for astrophysics.
最高第 1 名00:22 达到00:22 首次观测上榜23:12 观测离榜累计约22小时49分 - 12Algorithms create foundry-ready photonic circuits
Photonic microchips can process data at extremely high speeds and are embedded in a wide variety of today's technologies. Researchers at the Max Planck Institute for the Science of Light (MPL) and Harvard University have now succeeded in developing three functional components for such chips that are up to 500 times smaller than conventional designs. The researchers used inverse design, a computer algorithm, to achieve this. The results are published in Nature Communications.
最高第 1 名01:40 达到01:40 首次观测上榜当日结束时仍在榜累计约22小时3分 - 13Why and how birdsong differs across the world—and the eight motifs that tie them together
Birdsong carries meaning across open space, helping birds attract mates, defend territory and communicate with rivals. While there has been much research into the use of birdsong across species, researchers have lacked a single global framework that explains birdsong complexity and how it differs from place to place. But now, in a study recently published in Science, a group of researchers in France have analyzed more than 116,000 bird songs from 3,160 passerine species around the world, allowin
最高第 1 名00:52 达到00:52 首次观测上榜当日结束时仍在榜累计约22小时51分 - 14Quantum dots reveal hidden light waves on metal surfaces
Photographs can reveal things that are otherwise impossible for the naked eye to see, be they distant galaxies or microscopic cells. Researchers at Osaka Metropolitan University have developed a practical and versatile imaging technique that makes another usually invisible phenomenon visible: surface plasmon polaritons (SPPs), light waves that travel along metal surfaces.
最高第 1 名02:56 达到02:56 首次观测上榜当日结束时仍在榜累计约20小时48分 - 15Smarter, greener ways to protect fragile cultural heritage
Museums, libraries, archives and heritage organizations face a difficult problem: Many of the objects they preserve are made from materials that naturally deteriorate.
最高第 1 名08:16 达到08:16 首次观测上榜当日结束时仍在榜累计约15小时28分 - 16Long-lived ytterbium states could sharpen quantum computing and atomic clocks
Researchers from the University of Amsterdam and the University of New South Wales have answered a question that has been around for decades: whether ions of the metal ytterbium can enter certain long-lived, nearly stable states and, if so, for how long. The measured long-lived states may find applications in quantum computers and atomic clocks.
最高第 1 名05:36 达到05:36 首次观测上榜当日结束时仍在榜累计约18小时8分 - 17More than 80,000 flee forest infernos in France and Spain
Europe's wildfire crisis forced more than 80,000 people to flee for safety Friday, as vacationers boarded boats to escape fires on a French peninsula and Spanish officials ordered mass evacuations in towns near Madrid.
最高第 1 名00:40 达到00:40 首次观测上榜当日结束时仍在榜累计约23小时3分 - 18Trust among farmers is key to scaling climate-smart innovations
As the climate becomes increasingly variable and extreme events become more frequent, accelerating the use of innovations that can strengthen agricultural resilience has become a priority for agrifood systems. Science has made progress in developing solutions with the potential to help farmers address these challenges. However, ensuring that knowledge about these innovations reaches more farmers and is understood, adapted and scaled remains one of the major challenges in research for development
最高第 1 名01:04 达到01:04 首次观测上榜当日结束时仍在榜累计约22小时39分 - 19Review finds lack of evidence as to whether planting around our homes reduces the pollution we breathe
A new review led by the University of East London (UEL) has uncovered a major blind spot in air pollution research. Despite domestic gardens covering vast areas of Britain's towns and cities, researchers found no direct evidence showing whether they reduce pollution levels or improve the air people breathe at home. There is a huge gap in understanding the role of domestic gardens in air quality.
最高第 1 名01:22 达到01:22 首次观测上榜当日结束时仍在榜累计约22小时21分 - 20Cutting out the noise: How horseshoe bats adapt their echolocation behavior in colonies
Imagine searching for a gemstone in a dark cave: You use a flashlight, looking for a rainbow-colored glint in the darkness. Now, imagine 10 other people in the cave with you, using different-colored flashlights at the same time. Suddenly, you can no longer tell which light is coming from your gemstone, which light is from another flashlight or which light is coming from a reflection off another unknown object. That is what echolocation with multiple, overlapping frequencies would be like. But no
最高第 1 名02:24 达到02:24 首次观测上榜当日结束时仍在榜累计约21小时20分 - 21New methods for removing harmful nitrates from drinking water identified
Nitrate contamination of drinking water poses a major health concern, particularly in agricultural communities where fertilizers, livestock manure and septic systems can leach nitrates into groundwater. Many rural households rely on private water wells, which may not be routinely tested, leading some to consume contaminated water without realizing it.
最高第 1 名03:12 达到03:12 首次观测上榜当日结束时仍在榜累计约20小时32分 - 22Gold-catalyzed chemical reaction advances next-generation anticancer prodrugs
Anticancer prodrugs have attracted significant attention from the medical and scientific communities in recent years because of their potential to improve treatment precision while reducing side effects. These drugs are engineered to remain inactive until they are activated at specific sites or under particular physiological conditions within the body, at which point they release their therapeutic effect.
最高第 1 名03:28 达到03:28 首次观测上榜当日结束时仍在榜累计约20小时16分 - 23Scientists turn modern biobanks into a new window on human evolution
For more than a century, scientists have sought to reconstruct human evolution using diverse lines of evidence, including fossils, genetic variation across populations and ancient DNA. Building on these approaches, researchers are increasingly using large population biobanks to investigate how natural selection continues to shape the genomes of living populations.
最高第 1 名03:44 达到03:44 首次观测上榜当日结束时仍在榜累计约20小时 - 24Prize honors discovery of altermagnetism as a third fundamental class of magnetism
One of Europe's highest distinctions in condensed matter physics has been awarded for a discovery that is reshaping our understanding of magnetism: The 2026 Europhysics Prize of the European Physical Society (EPS) Condensed Matter Division goes to Professor Jairo Sinova of Johannes Gutenberg University Mainz (JGU), Dr. Libor Šmejkal and Professor Tomas Jungwirth for their discovery of altermagnetism—a previously unknown fundamental class of magnetism.
最高第 1 名11:12 达到11:12 首次观测上榜当日结束时仍在榜累计约12小时32分 - 25Can a robot tutor give too much help? Why timing matters
A learner stands in a room with a bottle, a cup and a book. The task is to figure out, step by step, where each object belongs in the room. Under the table? Or perhaps on the chair? A humanoid robot gives the instructions—but in Swahili, a language the learner does not know. To solve the puzzle, the learner must gradually decipher what the robot is saying.
最高第 1 名04:16 达到04:16 首次观测上榜当日结束时仍在榜累计约19小时28分 - 26Unraveling the climate behind the collapse of Bronze Age civilizations
The most severe droughts in the ancient Eastern Mediterranean arose when multiple natural climate cycles coincided, according to a new study from Stockholm University published in Science Advances. The findings shed new light on the climate conditions surrounding the Late Bronze Age collapse and may help improve understanding of future drought risks in a warming world.
最高第 2 名02:08 达到02:08 首次观测上榜当日结束时仍在榜累计约21小时36分 - 27Researchers develop AI-driven method to improve forecasts weeks in advance
Haonan Chen, a CSU associate professor of electrical and computer engineering, and his team have published research that could improve the accuracy of precipitation forecasts up to two weeks in advance.
最高第 2 名00:00 达到当日首次采集时已在榜09:36 观测离榜累计约9小时36分 - 28Why Europa's hidden ocean may be more difficult to reach than scientists thought
Europa, one of Jupiter's icy moons, has long fascinated scientists because of what may lie beneath its frozen shell: a global ocean of liquid water. That hidden ocean has made Europa one of the most compelling places in the solar system to study the conditions that might support life. But new research led by Rutgers scientist Lujendra Ojha suggests one of the most promising shortcuts to Europa's ocean may be far more complicated than previously thought.
最高第 2 名00:04 达到00:04 首次观测上榜20:16 观测离榜累计约20小时11分 - 29Quantum Zeno effect could freeze computations as qubit systems scale up
The promise of quantum computing is to solve complex problems faster and more energy-efficiently than today's supercomputers—from optimizing logistics to simulating molecules. This goal is coming within reach as the number of qubits—the computational units of quantum computing—increases.
最高第 2 名00:40 达到00:40 首次观测上榜当日结束时仍在榜累计约23小时3分 - 30Fat-storing cell structures may block viral spread by recruiting antiviral proteins
La Trobe University scientists have uncovered the critical role fatty cell structures play in our body's early detection and defense against viruses. Published in Nature Communications, the discovery could open the door to a new type of antiviral strategy that harnesses the body's innate defense mechanisms rather than targeting individual viruses.
最高第 2 名01:04 达到01:04 首次观测上榜当日结束时仍在榜累计约22小时39分 - 31Rocks from unexplored far side of the moon help rewrite lunar history
Ancient samples from the moon's far side are helping scientists uncover how asteroid impacts shaped the early solar system. The findings challenge decades of thinking about when those impacts occurred and offer new insights into the conditions that influenced Earth's evolution.
最高第 2 名01:22 达到01:22 首次观测上榜当日结束时仍在榜累计约22小时21分 - 32How fishing may be changing one fish species at the molecular level
The pearly razorfish (Xyrichtys novacula) is a small marine animal that lives in sandy coastal waters and feeds on creatures like shrimp. Known locally in Spain's Balearic Islands as raors, it is a popular dish in many homes and restaurants across the region.
最高第 2 名01:40 达到01:40 首次观测上榜当日结束时仍在榜累计约22小时3分 - 33Native fine-flavor cacao can match commercial varieties in yield, study finds
A study carried out on smallholder farms in northern Peru shows that Blanco de Piura, a native fine-flavor cacao variety, can achieve productivity levels comparable to those of commercial varieties widely grown across Latin America. The research, led by the Alliance of Bioversity International and CIAT and the University of Göttingen in collaboration with Cooperativa Agraria Norandino, shows that Blanco de Piura—renowned for its exceptional flavor and aroma—can produce an average of 1,200 to 1,5
最高第 2 名02:24 达到02:24 首次观测上榜当日结束时仍在榜累计约21小时20分 - 34Colorado prepares for screwworms, as the pest that was eradicated in 1966 returns to the US
New World screwworm, a concerning pest that mainly affects livestock and wildlife, was detected in South Texas in June 2026. It has since expanded northward in Texas, and there was one case in New Mexico as of July 23, 2026.
最高第 3 名00:00 达到当日首次采集时已在榜08:16 观测离榜累计约8小时16分 - 35Baby monkey Punch to celebrate first birthday
Punch, a plush-clutching Japanese baby monkey that has become a global online sensation, will celebrate his first birthday on Sunday as his zoo is flooded with fan letters from around the world.
最高第 3 名00:40 达到00:40 首次观测上榜23:28 观测离榜累计约22小时47分 - 36Malaria parasite selectively consumes linoleic acid fats, revealing drug target potential
Researchers at NYU Abu Dhabi have discovered that the malaria parasite relies on a specific type of fat to survive and multiply within the human host, uncovering a previously unknown vulnerability that could help guide future treatments.
最高第 3 名01:40 达到01:40 首次观测上榜当日结束时仍在榜累计约22小时3分 - 37Hydrogel electrode improves stability of insect-based odor sensors for drones
Drones are increasingly being used for disaster response, infrastructure inspection and environmental monitoring. However, most drone systems rely primarily on cameras and other visual sensors, which can become ineffective in smoke, dust, darkness or collapsed structures. Odor sensing could provide a valuable complementary capability by enabling drones to detect gas leaks and chemical emissions that cannot be identified through visual sensing alone. Yet a major challenge has limited the practica
最高第 3 名02:08 达到02:08 首次观测上榜当日结束时仍在榜累计约21小时36分 - 38Why evolution never produced mammal teeth that slice and crush equally well
Evolution is all about trade-offs. Traits that may be beneficial in one situation may backfire in another. Over millions of years, species can become specialized for one way of living rather than being equally good at everything. This explains why mammal teeth look the way they do today.
最高第 4 名00:00 达到当日首次采集时已在榜06:24 观测离榜累计约6小时24分 - 39UK in pole position to lead key instrument in NASA's hunt for Earth-like worlds
UK astronomers are a step closer to playing a leading role in NASA's search for alien life in the coming decades as they continue developing one of the core instruments of the Habitable Worlds Observatory (HWO). The exciting mission—the U.S. space agency's next flagship space telescope after the Nancy Grace Roman Space Telescope—is expected to launch in the 2040s.
最高第 5 名00:00 达到当日首次采集时已在榜05:36 观测离榜累计约5小时36分 - 40Wildfires: What can the UK and other nations learn from Australia's world‑leading fire response systems?
Wildfires are becoming a feature of the UK's hotter, drier climate. In July 2026, major fires swept through parts of the UK in a matter of days—notably setting Arthur's Seat, the extinct volcano in the center of Edinburgh, alight. The Scottish Greens labeled wildfires a "national emergency" after that fire.
最高第 6 名00:00 达到当日首次采集时已在榜04:32 观测离榜累计约4小时32分 - 41Metal-ion coating improves extracellular vesicles for cancer detection and targeted delivery
Researchers, including those from the University of Tokyo, found a way to optimize how cells bind to small packages they release called extracellular vesicles. By coating the vesicles with metal ions, they made cells and their corresponding vesicles stick together more strongly than they would naturally. This reduced the time needed for cells to capture their own vesicles, even in mixtures containing billions of other vesicles.
最高第 7 名00:00 达到当日首次采集时已在榜04:16 观测离榜累计约4小时16分 - 42Why you should think twice before rescuing a wild animal
Imagine you're driving down a winding road when you spot an injured possum. Your instincts might tell you to hit the brakes, check what's wrong and bundle it into your car. Research shows many of us want to help wild animals in distress. This may be out of empathy, obligation or simply wanting to do the right thing.
最高第 8 名00:00 达到当日首次采集时已在榜03:44 观测离榜累计约3小时44分 - 43Combining AI protein design with laboratory evolution improves engineered enzymes
When scientists want to create a protein that can potentially treat disease, one approach is to begin with a different protein and evolve it in the lab, selecting over many generations for versions with a new, desired function.
最高第 9 名00:00 达到当日首次采集时已在榜03:28 观测离榜累计约3小时28分 - 44'Jimothy' the raccoon has short spine syndrome—but this condition can affect dogs, too
If you've been anywhere near the internet in recent days, you will likely have seen the viral footage of "Jimothy": an unusually round raccoon in Seattle that hops and skips along in a video filmed by local resident Kiana Hall.
最高第 10 名00:00 达到当日首次采集时已在榜03:12 观测离榜累计约3小时12分 - 45Oxygen collisions at the LHC show new indications of extreme state of matter
All four main LHC experiments have found new signs that oxygen and neon collisions may create the extreme state of matter that existed during the first microseconds after the Big Bang.
最高第 11 名00:00 达到当日首次采集时已在榜02:56 观测离榜累计约2小时56分 - 46Fossilized wood reveals 300 million years of Earth's history
Many people are familiar with fossilized wood as a decorative item from a museum shop. However, the fact that it can preserve the geological history of entire regions spanning millions of years is a new discovery. A research team led by geologist Dr. Steffen Trümper from the University of Münster has now demonstrated for the first time that fossilized wood is a natural archive from which the geological history of an entire region over hundreds of millions of years can be deduced.
最高第 12 名00:00 达到当日首次采集时已在榜02:24 观测离榜累计约2小时24分 - 47Can ocean chemistry be altered to absorb carbon? The pros and cons
As the planet warms, countries around the world are racing to meet their net-zero targets set out in the 2015 Paris Agreement.
最高第 13 名00:00 达到当日首次采集时已在榜02:24 观测离榜累计约2小时24分 - 48Plumage reflectance framework offers new insight into how birds evolved heat-controlling feathers
Birds can inhabit various environments with different climates and temperatures, ranging from cold polar regions to scorching hot deserts. To survive and thrive in these very different environments, they need to effectively regulate their body temperature.
最高第 14 名00:00 达到当日首次采集时已在榜02:08 观测离榜累计约2小时8分 - 49Rejection hurts: How to help kids and teens bounce back when they've missed out
Rejection can sometimes be so intense it feels like physical pain—a punch in the gut or a heart that aches. It often involves feeling left out and unwanted. And it can make us question our self-worth.
最高第 15 名00:00 达到当日首次采集时已在榜02:08 观测离榜累计约2小时8分 - 50World's first 'zinc oxide spin qubit' could advance scalable quantum devices
A research team led by SKKU professor Hosung Seo of the Department of Quantum Information Engineering and the SKKU Advanced Institute of Nanotechnology, working with the University of Wisconsin–Madison and the University of Washington, has identified—for the first time—an atomic defect structure in the zinc oxide (ZnO) semiconductor with outstanding properties for use as a "spin qubit," a core building block of future quantum computers, quantum communications and quantum sensors.
最高第 16 名00:00 达到当日首次采集时已在榜02:08 观测离榜累计约2小时8分



































