Optics & Photonics
New photonic chips passively convert laser light into multiple colors on demand
Over the past several decades, researchers have been making rapid progress in harnessing light to enable all sorts of scientific and industrial applications. From creating stupendously accurate clocks to processing the petabytes ...
16 hours ago
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Astronomy
Cosmic ray puzzle resolved as scientists link 'knee' formation to black holes
Milestone results released by the Large High Altitude Air Shower Observatory (LHAASO) on November 16 have solved a decades-old mystery about the cosmic ray energy spectrum—which shows a sharp decrease in cosmic rays above ...
22 hours ago
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Dogs 10,000 years ago roamed with bands of humans and came in all shapes and sizes
From village dogs to toy poodles to mastiffs, dogs come in an astonishing array of shapes, colors and sizes. Today there are estimated to be about 700 million dogs living with or around humans.
Evolution
Nov 15, 2025
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138
Drift logs destroy intertidal ecosystems, study shows
Logs are a familiar sight on the beaches along the coast of Vancouver Island and Haida Gwaii and are often viewed positively, as they can stabilize the banks, be used for firewood or act as benches by beach-goers. However, ...
Ecology
Nov 15, 2025
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109
Selective PET recycling: Iron catalyst and alcohols convert bottles and textiles into valuable compounds
Professor Kotohiro Nomura's research group at Tokyo Metropolitan University has developed an efficient method for the exclusive depolymerization of PET (polyethylene terephthalate), PET bottles and textile wastes, using alcohols ...
Polymers
Nov 15, 2025
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67
Exercise-induced vesicles boost neuron growth when transplanted into sedentary mice
Researchers at the University of Illinois Urbana-Champaign report that extracellular vesicles released into the bloodstream during aerobic exercise can, on their own, drive a robust increase in adult hippocampal neurogenesis ...
One of the world's oldest blood pressure drugs may also halt aggressive brain tumor growth
A Penn-led team has revealed how hydralazine, one of the world's oldest blood pressure drugs and a mainstay treatment for preeclampsia, works at the molecular level. In doing so, they made a surprising discovery—it can ...
Medications
14 hours ago
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81
From body fat to bone, experiment offers hope for 'gentle' repair of fractures
Japanese researchers are testing a surprising, minimally invasive way to repair spine fractures.
Medical research
11 hours ago
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A time-sensitive genetic switch for sex-specific features of developing neurons
Researchers have identified that the precisely timed transcription of two genes named grim and reaper is responsible for the targeted death of neurons within the developing nervous system of female flies. This group of neurons ...
Genetics
12 hours ago
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40
Study reveals how uterine contractions are regulated by stretch and pressure during childbirth
When labor begins, the uterus must coordinate rhythmic, well-timed contractions to deliver the baby safely. While hormones such as progesterone and oxytocin are key contributors to that process, scientists have long suspected ...
Obstetrics & gynaecology
13 hours ago
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The Future is Interdisciplinary
Find out how ACS can accelerate your research to keep up with the discoveries that are pushing us into science’s next frontier
Medical Xpress
Study reveals how uterine contractions are regulated by stretch and pressure during childbirth
Why snake pee may be key to treating kidney stones and gout
Poor sleep may nudge the brain toward dementia, researchers find
How to keep dementia from robbing your loved ones of their sense of personhood—tips for caregivers
Ethiopia confirms outbreak of deadly Marburg virus: Africa CDC
Q&A: Odds of surviving cancer drop drastically when credit score dips
Severe nausea during pregnancy and depression: Study reveals bidirectional association
AHA: Study examines impact of adequate prenatal care for congenital heart disease
Low-glutamate diet linked to brain changes and migraine relief in veterans with Gulf War Illness
FDA lifts major warnings on hormone replacement therapy
Analysis reveals imaging is overused in diagnosing and managing facial paralysis disorder Bell's palsy
At some doctors' offices, AI is listening in the exam room
Washington resident is infected with a different type of bird flu
Scientists document a death from a meat allergy tied to certain ticks
Gut bacterium could be key to tackling obesity crisis
Neural 'barcodes': Intra-regional brain dynamics linked to person-specific characteristics
Unusual days signal rising migraine risk
Tech Xplore
How do 'AI detection' tools actually work? And are they effective?
Renewable energy is reshaping the global economy—new report
Newsom touts California's record battery energy gains at UN climate conference
AI-powered LED system delivers stable wireless power for indoor IoT devices
Low-grade heat from renewable sources could be used to desalinate water
AI at the speed of light just became a possibility
New pathways to green hydrogen use seawater without additional reagents
Solid-state sodium batteries could be safer, cheaper, more powerful option
New cathode chemistry slashes self-discharge in grid-scale zinc-iodine batteries
Cracking the code of complexity in computer science's P vs. NP problem
Cheaper cars emit more pollution, creating urban air quality inequality
Combining nuclear waste disposal with mobile energy generation
Ultra-strong, lightweight metal composite can withstand extreme heat
University of Toronto researchers have designed a new composite material that is both very light and extremely strong—even at temperatures up to 500 Celsius.
Engineering
Nov 15, 2025
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New technique enables faster drug design for diseases linked to ion channels
An international team involving the Institute of Chemical Research, a joint center of the University of Seville and the Spanish National Research Council, has developed a new technique that will accelerate the design of drugs ...
Biochemistry
Nov 15, 2025
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Saturday Citations: Humans have sensitive hands; solar system travels 3 times faster than predicted
It's the third of a generous five Saturdays in the month of November. What did we do to deserve such a bounty of days off? In the last week, we reported on hundreds of developments in science. Here is a more or less arbitrary ...
Software optimizes brain simulations, enabling them to complete complex cognitive tasks
A new software enables brain simulations which both imitate the processes in the brain in detail and can solve challenging cognitive tasks. The program was developed by a research team at the Cluster of Excellence "Machine ...
Neuroscience
Nov 15, 2025
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Small group counseling boosts students' emotional skills and school connectedness
Across the United States, children spend more than 1,100 hours in school each year—time that shapes not only their academic success but also their emotional and social growth. Yet, for many students, the school environment ...
Social Sciences
Nov 15, 2025
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Offsetting blue carbon benefits: Mangrove tree stems identified as previously underestimated methane source
Mangrove ecosystems rank among the most efficient "blue carbon" systems on Earth, capable of absorbing and storing vast quantities of atmospheric carbon dioxide (CO2). However, mangroves also release methane (CH4), a potent ...
Earth Sciences
Nov 14, 2025
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AI math genius delivers 100% accurate results
At the 2024 International Mathematical Olympiad (IMO), one competitor did so well that it would have been awarded the Silver Prize, except for one thing: it was an AI system. This was the first time AI had achieved a medal-level ...
Gut bacterium could be key to tackling obesity crisis
The internet, libraries and bookshops are full of plans and advice on how to lose weight, from fad diets to intense exercise routines. But there could be another route to keeping the pounds away, and that's with a gut bacterium ...
Nature-inspired navigation system helps robots traverse complex environments without GPS
Robots could soon be able to autonomously complete search and rescue missions, inspections, complex maintenance operations and various other real-world tasks. To do this, however, they should be able to smoothly navigate ...
Neural 'barcodes': Intra-regional brain dynamics linked to person-specific characteristics
People can think, behave and function very differently. These observed differences are known to be the result of complex interactions between genetics, neurobiological processes and life experiences.
Ukraine's farms once fed billions, but now its soil is starving
For decades, Ukraine was known as the breadbasket of the world. Before the full-scale Russian invasion in 2022, it ranked among the top global producers and exporters of sunflower oil, maize and wheat. These helped feed more ...
Engineered endophytic microbiomes boost crop health and suppress soil-borne diseases
In a new study published in Horticulture Research, a team of researchers from the Institute of Subtropical Agriculture of the Chinese Academy of Sciences has demonstrated that designed synthetic microbial communities (SynComs) ...
We planted two woody meadows a decade ago to see what would thrive—now, it's popular across Australia
It sounds like a gardener's holy grail: beautiful and practical plantings that can turn cities into green spaces with benefits for people and biodiversity.
55 million years: Australia's oldest crocodile eggshells found in Queensland
In southeast Queensland, roughly 250 kilometers from Brisbane, lies the tiny town of Murgon. Located on Wakka Wakka Country, it's home to about 2,000 people—and one of the most important fossil sites in the world.
Diaper changes are not just a chore to rush through. You can use them to teach consent
There has been a lot of focus on the need to teach older children about consent. But parents should not wait until kids are teenagers to talk about appropriate touching or how everyone has the right to say what happens to ...
Beyond rent: Shared houses in Tokyo offer lifestyle, safety and community
Rapid social and demographic change has reshaped how people live and connect in cities. In Tokyo, where urban density meets growing individualization, a new form of collective housing—shared houses—is redefining what ...
It's a myth that the Victorians created modern dog breeds—we've uncovered their prehistoric roots
Domestic dogs are among the most diverse mammals on the planet. From the tiny chihuahua to the towering great dane, the flat-faced pug to the long-muzzled borzoi, the sheer range of canine shapes and sizes is staggering.
If the supernova standard candle is wrong, it could solve the Hubble tension
Last time I wrote about new data that overturns the standard cosmological model. Before anyone starts dusting off their fringe cosmological models, we should note what this new study doesn't overturn. It doesn't say the Big ...
How adolescents can become resilient to digital misinformation
Young people are particularly susceptible to misleading information on social media. Yet insights from developmental psychology show that they also have unique strengths to build resilience. In a new perspective paper led ...
A single gene may shape the taste of tea
Tea (Camellia sinensis) is one of the world's most widely consumed beverages, and the size of young buds directly influences both yield and quality. Larger buds can increase leaf mass, while different tea types require specific ...
Tourists give restaurants higher ratings than locals, new study finds
Tourists don't just bring cameras and appetites on vacation, they also bring rosier opinions. A new study in the INFORMS journal Information Systems Research finds that travelers systematically give restaurants higher online ...
How deep does it go? World-first mapping reveals the true depth of Australia's deepest lake
A high-tech mapping team from CSIRO, Australia's national science agency, has produced an incredible new view of one of Tasmania's most iconic natural features and Australia's deepest lake, Lake St Clair in Tasmania's central ...
Ethics should lead, not play catch-up, expert emphasizes as Japan panel OKs making human embryos from stem cells
A leading bioethicist at Hiroshima University is calling for an anticipatory, rather than reactive, approach to ethics after a Japanese government panel in August backed a report that brings the country a step closer to becoming ...
Baby sea otter is reunited with mother in central California after dramatic rescue
It was a foggy October afternoon on the central California coast when the Marine Mammal Center got a call on their public hotline: there were distressed cries coming from the frigid waters in Morro Bay.
Satellites play critical role in tracking climate adaptation, researchers say
Satellite-based Earth observation provides a unique and powerful tool in tracking climate adaptation, an international study involving University of Galway researchers has shown.
Global review identifies 57 new living species of tiny marine foraminifera
A global review of tiny sea animals called foraminifera has identified 57 new living species, including three from NZ waters. The NZ-led research team used DNA sequencing and physical structure to describe types of foraminifera ...
Thais navigate flooded homes and ancient temples by boat
For three months, Thai retiree Somkid Kijniyom has been sleeping in a small boat surviving on dry food handouts in the waist-high floodwaters that have filled his home.
Arachnid super-web reveals the surprising 'constant party' life of cohabiting spiders
What is thought to be the world's largest-known spider's web, housing tens of thousands of arachnids, has been discovered in a cave on the Albanian-Greek border.
Climate leaders are talking about 'overshoot' into warming danger zone. Here's what it means
The world's climate leaders are conceding that Earth's warming will shoot past a hard limit they set a decade ago in hopes of keeping the planet out of a danger zone. But they're not conceding defeat.
Demand for JWST's observational time hits a new peak
Getting time on the James Webb Space Telescope (JWST) is the dream of many astronomers. The most powerful space telescope currently in our arsenal, the JWST has been in operation for almost four years at this point, after ...
