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794 stories in Science

Saturday, 22 August 2026

Computer models pinpoint catalysts for replacing fossil-fueled ammonia production

Computer models identified catalytic materials that could enable sustainable ammonia production to replace fossil fuel-dependent methods currently responsible for 1.5% of global greenhouse gas emissions. The research focused on finding catalysts that improve the efficiency of ammonia synthesis, which currently consumes up to 2% of worldwide energy.

Mars Curiosity rover discovers massive field of polygons

The Curiosity rover discovered a massive field of polygons on Mars's surface. These formations exist because Mars lacks resurfacing processes like plate tectonics and volcanism that reshape Earth.

AI mapping reveals hidden stage of Arctic freeze with climate implications

Scientists produced high-resolution maps showing the Arctic zero curtain, a phase where soils remain near freezing for days or weeks during autumn-to-winter transitions. The NASA-led research reveals this previously difficult-to-detect stage using AI mapping technology with climate implications for the Arctic region.

AI decodes DNA initiator sequence found in about 60% of human genes

Artificial intelligence successfully identified and decoded an initiator DNA sequence present in approximately 60% of human genes that controls gene activation. This sequence is critical for ensuring genes are precisely switched on to produce essential proteins and enzymes necessary for healthy cell function.

A museum-shelf mystery reveals 6,500-year-old human tooth pendant in Serbia

A human tooth pendant with a deliberately drilled hole, dating back more than 6,500 years, was discovered at the Vinča cultural site of Jablanica in Serbia after being initially misidentified as an animal tooth bead. Archaeologists Nemanja Marković and Ana Maričić recognized the artifact was human remains that had been strung on a cord for use as a necklace.

Peppermint oil lowers blood pressure in just 20 days

A small daily dose of peppermint oil lowered systolic blood pressure by an average of 8.5 mmHg over 20 days in adults with mildly elevated blood pressure. The placebo group showed little change in their measurements.

Exercise may work better for keeping weight off than losing it

Regular exercise preserves muscle, supports metabolism, and improves fat burning to help prevent lost weight from returning. The research suggests exercise works better for maintaining weight loss than achieving initial weight loss through preserving metabolic function.

Multilingual people may have brains up to 13 years younger

Four-language speakers showed brains appearing about 13 years younger than monolinguals based on neuroimaging measures of brain aging. Earlier language acquisition and high fluency were associated with greater slowing of brain age.

This frozen fiber makes light and sound interact 1,000x more strongly

Freezing an optical fiber's liquid core created a medium where light and sound interact over 1,000 times more strongly than in standard fibers. Researchers used this effect to develop optoacoustic memory for potential applications in low-energy photonic computers and quantum technologies.

JWST finds early galaxies may be 4 times more massive than thought

Early galaxies contain three to four times more mass than previously estimated due to abundant small, faint stars not detected by earlier observations. This discovery complicates explanations for how massive galaxies formed rapidly after the Big Bang and suggests planets around low-mass stars were more prevalent in the early universe.

This yeast supplement may boost cancer-fighting immunity

Yeast beta-glucan reprogrammed early immune cells in the bone marrow, producing stronger, longer-lasting cancer-fighting responses. The supplement was tested against colorectal, skin, and breast cancer cells in mice.

Friday, 21 August 2026

Hydrogel platform uses vitamin B2 and blue light to simplify living tissue models

A hydrogel platform using vitamin B2 and blue light enables researchers to create customized biomaterials for tissue engineering and drug discovery under cell-friendly conditions. The plug-and-play crosslinking technology allows incorporation of biological molecules including proteins, peptides, and nucleic acids into hydrogels.

Climate change could triple the price of wheat

Climate change could triple wheat prices by simultaneously causing water shortages across major wheat-growing regions in North America, Europe, and Asia. These shortages would increase costs for bread, pasta, and breakfast cereals on supermarket shelves.

Complex odors prove easier to map than expected with machine learning

A machine learning model can map complex odors using chemical composition data, similar to how the Pantone system categorizes colors. The researchers found that odor perceptions cluster predictably based on molecular properties, enabling systematic comparison between different scents.

Laser-cut aluminum foil could replace costly terahertz polarizers

Researchers laser-cut aluminum foil to create wire-grid polarizers for terahertz experiments, replacing components that previously cost thousands of dollars each. The new method uses a simple technique to pattern the foil into the required optical device structure.

Scientists map hair follicle formation in spacetime, advancing understanding of how organs develop

Scientists developed technology to capture 3D molecular snapshots of hundreds of developing hair follicles and reconstructed time to create stop-motion animations showing organ formation. The research, published in Cell, maps hair follicle development across both space and time at the molecular level.

Iron hydride enters an exotic state of matter under Earth's inner-core conditions

Researchers at Science Tokyo used laser-heated diamond-anvil cells to identify signatures of superionic iron hydride at Earth's inner-core pressure and temperature conditions. This exotic state of matter may exist in Earth's core, which is primarily composed of iron with small percentages of light elements.

NASA Shares Views of August Solar Eclipse from Ground, Air, Space

A total solar eclipse on August 12 darkened skies over Greenland, Iceland, and Spain, briefly revealing the Sun's corona to observers in the path of totality with clear skies. NASA researchers and photographers documented the event from ground, air, and space vantage points.

Webb Opens Treasure Chest

The James Webb Space Telescope captured an infrared image of a cometary globule called the "Treasure Chest" located in the Carina Nebula star-forming region on August 6, 2026. A cometary globule is an isolated cloud of gas and dust with a dense core.

NASA’s Artemis II Crew Set to Receive Congressional Space Medal of Honor

Four astronauts will receive the Congressional Space Medal of Honor at a ceremony on August 28 at NASA's Johnson Space Center in Houston. The recipients are NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, plus Canadian Space Agency astronaut Jeremy Hansen.

3 minutes of sprinting does something 90 minutes of exercise does not

Six 30-second sprints altered nearly a quarter of measured blood proteins and over 200 metabolites, while 90 minutes of moderate cycling produced substantially smaller immediate changes. Many proteins affected by sprinting were associated with lower risks of obesity, type 2 diabetes, and metabolic diseases.

Scientists catch a hidden electronic state forming in just 30 femtoseconds

A hidden electronic state formed in a material in just 30 femtoseconds when triggered by light, with bonds reorganizing in a repeating pattern before atomic shifts occurred. This ultrafast pathway reveals a previously unseen step that could enable control of electronic properties with light.

This weight-loss hormone may protect the liver even without weight loss

GDF15, a hormone that reduces appetite and promotes weight loss, activates a brain-to-liver pathway that triggers glucocorticoid release to reduce liver inflammation and scarring. McMaster University researchers discovered this protective mechanism operates independently of weight loss through immune system regulation.

AI may know how you’ll respond to a vaccine before you get it

Researchers used AI to analyze antibody patterns from over 4,000 people and identified markers of "immune readiness" that predict vaccine response strength before vaccination occurs. The analysis found that some healthy individuals showed weak responses while certain immunosuppressed people mounted strong immune reactions to vaccines.

2,200-year-old Roman shipwreck reveals ancient waterproofing secrets

A 2,200-year-old Roman shipwreck's hull contained pine tar coating and, in one section, a tar-and-beeswax mixture. Pollen embedded in these coatings provided geographic information about the landscapes where the ship underwent repairs.

A simple at-home test could cut colorectal cancer death risk by 43%

An at-home colorectal cancer screening test reduced death risk by 43% among participants, based on long-term data from over 376,000 people in Sweden. The study demonstrates that completing this simple screening test significantly improves survival outcomes from the disease.

A strange new quantum droplet can hold itself together

A theoretical model predicts that droplets composed of two different types of quantum particles can form stable structures without external forces. The discovery could reveal new quantum phases and will soon be tested experimentally.

Global access to food crops is affected by transport costs and economic inequality

Transport networks and economic inequality significantly affect global access to food crops beyond production capacity alone. Researchers from Finnish universities developed a spatial accessibility framework to assess how transport systems connect food supply with demand under various economic conditions and disruption scenarios.

AI-driven literature mining speeds discovery of heat-stable lead-free dielectric materials

AI analyzed data from hundreds of research papers to discover lead-free dielectric materials that remain stable at high temperatures. The approach transforms materials discovery from trial-and-error methods into a data-driven process.

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