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Scientists have devised a new method for mapping the spottiness of distant stars by using observations from NASA missions of orbiting planets crossing their stars’ faces. The model builds on a technique researchers have used for decades to study star spots. By improving astronomers’ understanding of spotty stars, the new model — called StarryStarryProcess — […]

Weight loss drugs like Ozempic and Wegovy are used by over 15 million adults in the U.S., or 4.5% of the population. Despite their effectiveness, they have drawbacks. Their effect may not last after discontinuing use, and side effects including osteoporosis and muscle loss have raised concerns about long-term harms. They also induce nausea, which […]

Under high-emission scenarios, the Atlantic Meridional Overturning Circulation (AMOC), a key system of ocean currents that also includes the Gulf Stream, could shut down after the year 2100. This is the conclusion of a new study, with contributions by the Potsdam Institute for Climate Impact Research (PIK). The shutdown would cut the ocean’s northward heat […]

NASA research has shown that cell-like compartments called vesicles could form naturally in the lakes of Saturn’s moon Titan. Titan is the only world apart from Earth that is known to have liquid on its surface. However, Titan’s lakes and seas are not filled with water. Instead, they contain liquid hydrocarbons like ethane and methane. […]

In 2009, NASA’s Chandra X-ray Observatory released a captivating image: a pulsar and its surrounding nebula that is shaped like a hand. i> X-rays from Chandra have been combined with radio data obtained by the Australian Telescope Compact Array to reveal new structures. At the center of this image is a pulsar, a rapidly spinning […]

A new research perspective was recently published in Aging, titled “Exercise as a geroprotector: focusing on epigenetic aging.” In this perspective, led by Takuji Kawamura from Tohoku University, researchers reviewed existing evidence from scientific studies showing that regular exercise, physical activity, and fitness may influence epigenetic aging and potentially reverse it, offering a promising way […]

The world’s most unusual dinosaur is even stranger than first realized… Research published in Nature on August 27 reports that Spicomellus afer had a tail weapon more than 30 million years before any other ankylosaur, as well as a unique bony collar ringed with meter-long spikes sticking out from either side of its neck. Spicomellus […]

When injured, cells have well-regulated responses to promote healing. These include a long-studied self-destruction process that cleans up dead and damaged cells as well as a more recently identified phenomenon that helps older cells revert to what appears to be a younger state to help grow back healthy tissue. Now, a new study in mice […]

A newly discovered, raccoon-sized armored monstersaurian from the Grand Staircase-Escalante National Monument in Southern Utah, United States, reveals a surprising diversity of large lizards at the pinnacle of the age of dinosaurs. Named for the goblin prince from J.R.R. Tolkien’s “The Hobbit,” the new species Bolg amondol also illuminates the sometimes-murky path that life traveled […]

For decades, researchers around the world have searched for alternatives to iridium, an extremely rare, incredibly expensive metal used in the production of clean hydrogen fuels. Now, a powerful new tool has found one — within a single afternoon. Invented and developed at Northwestern University, that tool is called a megalibrary. The world’s first nanomaterial […]

Chemists at UCL have shown how two of biology’s most fundamental ingredients, RNA (ribonucleic acid) and amino acids, could have spontaneously joined together at the origin of life four billion years ago. Amino acids are the building blocks of proteins, the “workhorses” of life essential to nearly every living process. But proteins cannot replicate or […]

New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London, in partnership with the University of Bath, has found that the reasons why a person chooses to use cannabis can increase their risk of developing paranoia. The use and potency of cannabis is increasing worldwide, and dependence and cannabis-induced psychosis […]

The United States could safely drop tetanus and diphtheria booster shots for adults and save an estimated $1 billion a year, according to a new review led by researchers at Oregon Health & Science University. The safety and savings depend on maintaining strong childhood vaccination rates, researchers emphasized. “By maintaining high childhood vaccination coverage, we […]

An internationally joint research group between Singapore and Japan has unveiled a blueprint for arranging exotic, knot-like patterns of light into repeatable crystals that extend across both space and time. The work lays out how to build and control “hopfion” lattices using structured beams at two different colors, pointing to future systems for dense, robust […]

A research team from the University of Basel, Switzerland, has developed a new molecule modeled on plant photosynthesis: under the influence of light, it stores two positive and two negative charges at the same time. The aim is to convert sunlight into carbon-neutral fuels. Plants use the energy of sunlight to convert CO2 into energy-rich […]

The host star, TOI-6894, is a red dwarf with only 20% the mass of the Sun, typical of the most common stars in our galaxy. Until now, such low-mass stars were not thought capable of forming or retaining giant planets. But as published recently in Nature Astronomy, the unmistakable signature of a giant planet — TOI-6894b […]

Remarkable fossils found in North Greenland have helped researchers solve a 500-million-year-old puzzle surrounding squid-like ancestors. It was previously thought ancient organisms called nectocaridids, which bear a resemblance to squid, were a type of cephalopod – marine molluscs with tentacles and a prominent head. But scientists, co-led by the University of Bristol, have now shown […]

Eating animal-sourced protein foods is not linked to a higher risk of death and may even offer protective benefits against cancer-related mortality, new research finds. The study, published in Applied Physiology, Nutrition, and Metabolism, analyzed data from nearly 16,000 adults aged 19 and older using the National Health and Nutrition Examination Survey (NHAMES III). Researchers […]

A new study provides fresh evidence that ancient interbreeding with archaic human species may have provided modern humans with genetic variation that helped them adapt to new environments as they dispersed across the globe. The study, published in Science, focused on a gene known as MUC19, which is involved in the production of proteins that […]

Optical microscopy is a key technique for understanding dynamic biological processes in cells, but observing these high-speed cellular dynamics accurately, at high spatial resolution, has long been a formidable task. Now, in an article published in Light: Science & Applications, researchers from The University of Osaka, together with collaborating institutions, have unveiled a cryo-optical microscopy […]

Scientists at St. Jude Children’s Research Hospital demonstrated for the first time that the protein midkine plays a preventative role against Alzheimer’s disease. Midkine is known to accumulate in Alzheimer’s disease patients. Now, researchers have connected it with amyloid beta, a protein that accumulates in the brain, causing assemblies that are a hallmark of Alzheimer’s. […]

A new study led by the University of Oxford in collaboration with Royal Botanic Gardens Kew, University of Greenwich, and the Technical University of Denmark could provide a cost-effective and sustainable solution to help tackle the devastating decline in honeybees. An engineered food supplement, designed to provide essential compounds found in plant pollen, was found […]