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ScienceDaily

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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...

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https://www.sciencedaily.com

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Technology → Science

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Sugary drinks linked to rising anxiety in teens

16:02
Sugary drinks may be linked to more than just physical health problems in teens. A new review of multiple studies found a consistent association between high consumption of beverages like soda, energy drinks, sweetened juices, and flavored milks and increased anxiety symptoms in adolescents.

Intermittent fasting fails to beat standard dieting for weight loss

16:02
Intermittent fasting has become one of the most talked-about weight loss trends in recent years, promising dramatic results with simple changes to when you eat. But a major Cochrane review suggests the reality may be far less exciting. After analyzing 22 clinical trials involving nearly 2,000 adults, researchers found that intermittent fasting did not produce significantly more weight loss than s…

A spinning gyroscope could finally unlock ocean wave energy

16:02
Ocean waves are a vast and steady source of renewable energy, but capturing their power efficiently has long frustrated engineers. A researcher at The University of Osaka has now explored a bold new approach: a gyroscopic wave energy converter that uses a spinning flywheel inside a floating structure to turn wave motion into electricity. By harnessing gyroscopic precession—the subtle wobble of a …

This reengineered HPV vaccine trains T cells to hunt down cancer

16:02
Northwestern researchers have shown that when it comes to cancer vaccines, arrangement can be just as important as ingredients. By repositioning a small fragment of an HPV protein on a DNA-based nanovaccine, the team dramatically strengthened the immune system’s attack on HPV-driven tumors. One specific design slowed tumor growth, extended survival in animal models, and unleashed far more cancer-…

The Moon is still shrinking and it could trigger more moonquakes

14:14
Researchers have uncovered more than a thousand previously unknown tectonic ridges across the Moon’s dark plains, showing the Moon is still contracting and reshaping itself. These features are among the youngest geological structures on the lunar surface. Because they form through the same forces linked to past moonquakes, they could signal new seismic hotspots.

Ancient microbes may have used oxygen 500 million years before it filled Earth’s atmosphere

13:40
Life on Earth may have learned to breathe oxygen long before oxygen filled the skies. MIT researchers traced a key oxygen-processing enzyme back hundreds of millions of years before the Great Oxidation Event. Early microbes living near oxygen-producing cyanobacteria may have quickly used up the gas as it formed, slowing its rise in the atmosphere. The results suggest life was adapting to oxygen f…

People who switched to cannabis drinks cut their alcohol use nearly in half

13:40
A new University at Buffalo study suggests cannabis-infused beverages could help some people cut back on alcohol. In a survey of cannabis users, those who drank cannabis beverages reported cutting their weekly alcohol intake roughly in half and binge drinking less often. Nearly two-thirds said they reduced or stopped drinking alcohol after starting cannabis drinks.

A satellite illusion hid the true scale of Arctic snow loss

13:40
For years, satellite data suggested that autumn snow cover in the Northern Hemisphere was actually increasing — a surprising twist in a warming world. But a new analysis reveals that this apparent growth was an illusion caused by improving satellite technology that became better at detecting thin snow over time. In reality, snow cover has been shrinking by about half a million square kilometers p…

Viagra and shingles vaccine show surprising promise against Alzheimer’s

13:40
A major new study has spotlighted three familiar medicines that could take on an unexpected new role in the fight against Alzheimer’s disease — with a shingles vaccine emerging as the front-runner. After reviewing 80 existing drugs, an international panel of experts identified Zostavax, Viagra (sildenafil), and riluzole as the most promising candidates for repurposing.

NASA fired three rockets into the northern lights and the results are stunning

13:40
NASA has pulled off a high-flying aurora investigation, launching three rockets into the glowing northern lights over Alaska. One mission targeted mysterious dark patches called black auroras, while the twin GNEISS rockets created a 3D scan of the aurora’s electrical currents. All rockets reached their planned altitudes and returned strong data. The result: an unprecedented look at how these dazz…

125 million-year-old dinosaur with never before seen hollow spikes discovered in China

13:39
A 125-million-year-old dinosaur just rewrote what we thought we knew about prehistoric life. Scientists in China have uncovered an exceptionally preserved juvenile iguanodontian with fossilized skin so detailed that individual cells are still visible. Even more astonishing, the plant-eating dinosaur was covered in hollow, porcupine-like spikes—structures never before documented in any dinosaur.

Breakthrough CRISPR system could reverse antibiotic resistance crisis

13:39
Antibiotic resistance is racing toward a global crisis, with “superbugs” projected to cause over 10 million deaths annually by 2050. Now, scientists at UC San Diego have unveiled a powerful new CRISPR-based tool that doesn’t just fight resistant bacteria—it can actively strip away their drug resistance. Inspired by gene drives used in insects, the technology spreads a genetic “fix” through bacter…

Climate change is accelerating but nature is slowing down

13:39
As the planet warms, many expected ecosystems to change faster and faster. Instead, a massive global study shows that species turnover has slowed by about one-third since the 1970s. Nature’s constant reshuffling appears to be driven more by internal ecological dynamics than by climate alone. The slowdown may signal something alarming: ecosystems losing the biodiversity needed to keep their engine…

One stem cell generates 14 million tumor-killing NK cells in major cancer breakthrough

13:39
Scientists in China have unveiled a breakthrough way to mass-produce powerful cancer-fighting immune cells in the lab. By engineering early-stage stem cells from cord blood—rather than trying to modify mature natural killer (NK) cells—they created a streamlined process that generates enormous numbers of highly potent NK cells, including CAR-equipped versions designed to hunt specific cancers.

Toxic metals found in bananas after Brazil mining disaster

17.února
Researchers investigating crops grown in soil contaminated by the 2015 mining disaster in Brazil discovered that toxic metals are moving from the earth into edible plants. Bananas, cassava, and cocoa were found to absorb elements like lead and cadmium, with bananas showing a potential health risk for children under six. Although adults face lower immediate danger, scientists warn that long-term e…
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