Schools are rethinking whether every student needs a laptop
When the COVID-19 pandemic forced in-person classroom instruction to go virtual, students suddenly needed their own laptops or tablets to interact with teachers and complete assignments.
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Ancient stardust grains were seeds for the earliest solids in the solar system
How did the first solids that made up planets, moons and asteroids form from the "hot soup" that characterized our solar system's earliest years? New research from Caltech analyzing pieces of a meteorite has found that, just as snowflakes crystallize around grains of dust,
Tiny sugar chains act as brakes to control calcium and sodium flow in lysosomes
Lysosomes are small compartments inside cells that break down and recycle biological materials. Once regarded mainly as cellular waste-disposal centers, lysosomes are now understood to be important signaling hubs for calcium and sodium ions. Through these signals, they help
Study shows how changes in family ties are associated with mental health among older adults in China
There are roughly 220 million adults in China age 65 or older, more than twice as many as 20 years ago, with 1 in 5 currently reporting depressive symptoms.
Tiny fossils crack a Cretaceous cold case: Ocean acidification triggered one of the ocean's most severe extinctions
A 113-million-year-old marine murder mystery may finally be solved. Using chemical clues locked inside microscopic fossils, Northwestern University scientists found evidence that ocean acidification drove one of the largest extinction events in the history of planktic
New technique pinpoints human DNA inherited from 'ghost' ancestors
UC Berkeley researchers have identified regions of DNA that humans inherited from two unknown ancestors as a result of long-ago interbreeding among modern humans and at least four other archaic human relatives.
SMOS mission could offer early indicator of El Niño
Sea-surface salinity, the concentration of dissolved salts in the upper layer of the ocean, is much more than a measure of how salty the sea is. It responds rapidly to changes in rainfall, evaporation, river discharge and, specifically in polar regions, the melting and
Rainfall across the US is increasingly coming from farther away
Before rain falls, the moisture that forms it may have traveled anywhere from just a few kilometers to hundreds or even thousands of kilometers away. It usually begins as water that evaporated from oceans, lakes, forests or fields. According to a paper published in Geophysical
Ancient smallpox genomes reveal how European colonization brought the disease to the Americas
Researchers from Trinity College Dublin have recovered and analyzed the first ancient smallpox virus genomes ever identified in the Americas, providing the strongest direct evidence to date that the disease was introduced through European colonization.
Before North and South America were connected, their mammals found a way to intermingle
Until the Panamanian isthmus formed about 2.8 million years ago, North and South America were isolated continents with unique groups of animals. A riot of marsupials—mammals with brood pouches—and sloths in the south contrasted with camels, horses, pronghorn antelopes and
Curiosity Rover Finds “Sea of Polygons” on Martian Surface
It’s not the first time the robot has found interesting patterns on the red planet The post Curiosity Rover Finds “Sea of Polygons” on Martian Surface appeared first on Nautilus .
Flexible working could help more women lead family businesses, researchers say
Digital workplace innovation could help more women entrepreneurs become leaders of family firms by making it easier to balance work and family life, according to new research from the University of East London.
Light's hidden properties save quantum information from the chaos of bad weather
For years, researchers have tried to harness the "twist" of light to transmit data. This property describes how light spirals as it travels forward, and because it can be molded into a virtually infinite number of different twists, it provides a massive, promising alphabet for
Volcanic eruptions in Pacific Ring of Fire may have cooled Earth for centuries
For around 12,000 years, the Earth has been in the Holocene epoch, a warmer period following a glacial period. During this epoch, however, there have been around 22 abrupt cold phases, each lasting up to several centuries and leading to the expansion of glaciers.
Advances in AI-designed base editors pave the way for next-generation gene therapy
A joint research team led by Daesik Kim, a professor in the Department of Medicine at Sungkyunkwan University, along with Yong-Sub Kim, a professor at the University of Ulsan College of Medicine, and Jae-Hyun Park, a professor at Sungkyunkwan University School of Medicine, has
Satellite imagery could protect trees from devastating moth outbreaks
Satellite-derived maps of defoliation caused by European spongy moths—a devastating U.S. forest pest that consumes the leaves of a wide variety of trees—offer a promising solution for tracking where and when to spray and for identifying large-scale trends and conditions that
Climate change increases wildfire risks in Yosemite and other national parks
New UC Berkeley-led research indicates that continued climate change could severely increase wildfire above natural levels in Yosemite, Sequoia, Kings Canyon and Lassen Volcanic national parks.
The Odyssey of the Stone Age Maltese
New research points to a seafaring people who ranged far and wide The post The Odyssey of the Stone Age Maltese appeared first on Nautilus .
Public research and development money can unlock private investment and lasting economic growth
Strategic public investment in research and development (R&D) can begin boosting economic activity immediately, according to a study led by the University of Southampton. The research shows it can also mobilize private R&D, supporting economic growth for years.
Amazonian 'zombie' fungus harbors a hidden stage inside forest mosses, new study reveals
A team led by researchers at the National Institute for Amazonian Research (INPA), in Manaus, has found evidence that the "zombie-ant" fungus (genus Ophiocordyceps), known worldwide for controlling ant behavior and forcing infected ants to bite plants before dying, also lives
Biosphere reserves: Allies against deforestation in the Western Amazon
Biosphere reserves help curb deforestation in the Western Amazon and, taken together, have prevented the loss of more than 7,400 square kilometers (2,900 square miles) of forest over the last two decades compared with similar scenarios without this protection status. This is
Physicists link the Riemann Hypothesis to phase transitions in quantum systems
A new study in Nature Communications has established a link between the Riemann Hypothesis and dynamical phase transitions in engineered quantum systems, demonstrating the effect on a quantum processor.
Scientists advance space agriculture for future moon and Mars missions
Space isn't known for rich soil or ideal agricultural conditions anywhere in the solar system. Yet amid extreme temperatures and vast distances, multidisciplinary teams at USF's Aerospace: Science, Technology, Research and Applications Center (ASTRA) are collaborating on
Neutron star collisions may forge gold more slowly than expected
Where do gold, platinum and uranium come from? This question has fascinated astrophysicists and nuclear physicists for decades. A research team from Technische Universität Darmstadt has now taken an important step toward understanding the origin of heavy elements. Their
Scabies 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.
Surface engineering advances mitochondrial transplantation as a potential therapeutic strategy
Inside almost every cell in our bodies are tiny structures called organelles that keep us alive and functioning. Among these are many bean-shaped mitochondria, often referred to as the cell's power plants because they generate the energy our bodies need to survive. When
Tracking 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
Listening to songbird dreams for clues to how sleeping brains learn
Entering and manipulating dreams may sound like science fiction, but for Freeman Hrabowski Scholar Walter Gonzalez, these scenarios aren't confined to the big screen.
Did Ancient Humans Prefer Hunting Female Mammoths?
Female or not, mammoths were definitely key to their survival The post Did Ancient Humans Prefer Hunting Female Mammoths? appeared first on Nautilus .
Ancient 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
Water and functional diversity increase stability in temperate and Mediterranean forests
Research involving the UAB and CREAF has examined the factors that help forests maintain stable productivity over time and concluded that water and biodiversity are key determinants.
How one amino acid might help fight colon cancer and infections
Dietary arginine reduces tumor formation and viral load in mice by boosting key immune proteins.
Hiroshima 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
Drone cameras can measure pigments indicating surface health of dryland soils
Drylands soils are being degraded by human activities and climate change, threatening the thin living layers covering their surface, called biocrusts, according to the U.S. Geological Survey. Composed of cyanobacteria, lichens, mosses, algae, fungi and bacteria, biocrusts play
Does 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
One LED produces four stable colors at room temperature
Full-color displays normally require separate red, green and blue light emitters. A team from the University of Osaka and Ritsumeikan University has demonstrated another approach: a single light-emitting layer that produces several colors when electrically powered at room
New 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
Neptune's inner moons may be shattered remains of ancient icy worlds
In 1989, the Voyager 2 mission discovered six new moons orbiting Neptune, including five tiny ones that orbit just outside the planet's main rings. Because of their small sizes and locations, these satellites have been difficult to study from Earth. Now, using NASA's James Webb
An 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
Your shampoo routine could be driving household water waste, new study says
Everyday shower habits, such as applying shampoo or pausing the water while washing, are driving up water waste, argues a new study from the University of Surrey.
Earth Is Lumpy as Hell
It’s what’s on the inside that counts The post Earth Is Lumpy as Hell appeared first on Nautilus .
What if the brain does not create consciousness?
Christof Koch is taking on one of science’s deepest mysteries: how the brain creates conscious experience, or whether it creates it at all. He argues that materialism has yet to solve this “hard problem” and will explore puzzling phenomena such as near-death experiences and
May, 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.
This 4,000-year-old city defied the rules of history
As Mohenjo-daro prospered, the gap between its richest and poorest households actually shrank. Its shared infrastructure, fair trade systems, and lack of powerful royal elites suggest that equality may have helped fuel the ancient city’s success.
Mapping endangered habitats with the help of citizen scientists and satellite data
As biodiversity declines and many of the UK's most important habitats become smaller and more fragmented, conservation organizations need accurate, up-to-date maps to protect wildlife and restore nature. However, creating these maps by surveying every site on foot is
Two Arctic charr populations evolved in less than a century, study finds
Evolution, the process through which animals and other living organisms change their inherited traits over time, typically unfolds slowly over thousands or even millions of years. Some species, however, can adapt at a faster pace, particularly when they are isolated from other
A new monkey species has been found deep in Congo’s forests
A canopy call, a partial photo and DNA revealed a new primate species — one that may already be at risk of extinction.
Rice bran compound may help ease irritable bowel symptoms
A compound in rice bran may help calm an overactive gut by reducing the calcium signals that cause intestinal muscles to contract. Ferulic acid suppressed contractions triggered by several chemical messengers in laboratory experiments. The discovery could eventually support new
First 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,
Research finds exposure to 'untrustworthy' social media is rare, the fine print is less reassuring
How much of what you see on social media comes from sources that repeatedly post falsehoods? And if that content quietly vanished from your feed, would you believe anything different months later?
