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Monday, 23 February 2026

Young Mars volcano hides a powerful magma engine beneath the surface

A Martian volcano once thought to be the result of a single eruption turns out to have a much more complex past. Orbital imaging and mineral data show it developed through multiple eruptive phases, all powered by the same evolving magma system underground. Shifts in mineral composition reveal the magma changed over time, hinting at different depths and storage histories. Mars’ interior was far more active than previously believed.

from All Top News -- ScienceDaily https://ift.tt/nMuOY4b

Cleaner wrasse show self awareness in stunning mirror experiments

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more striking, some fish dropped shrimp in front of the mirror to watch how its reflection moved, a form of exploratory “contingency testing.” The findings suggest self-awareness may extend well beyond mammals.

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Why the outer solar system is filled with giant cosmic “snowmen”

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice and rock. For years, scientists wondered how these delicate two-lobed shapes could form without violent collisions tearing them apart. Now researchers at Michigan State University have recreated the process in a powerful new simulation, showing that simple gravitational collapse can naturally produce these cosmic “snowmen.”

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Sunday, 22 February 2026

A giant blade-crested spinosaurus, the “hell heron,” discovered in the Sahara

Deep in the heart of the Sahara, scientists have uncovered Spinosaurus mirabilis — a spectacular new predator crowned with a massive, scimitar-shaped crest that may once have blazed with color under the desert sun. Discovered in remote inland river deposits in Niger, the fossil rewrites what we thought we knew about spinosaur dinosaurs, suggesting they weren’t fully aquatic hunters but powerful waders stalking fish in forested waterways hundreds of miles from the sea.

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Frozen for 5,000 years, this ice cave bacterium resists modern antibiotics

Deep inside a Romanian ice cave, locked away in a 5,000-year-old layer of ice, scientists have uncovered a bacterium with a startling secret: it’s resistant to many modern antibiotics. Despite predating the antibiotic era, this cold-loving microbe carries more than 100 resistance-related genes and can survive drugs used today to treat serious infections like tuberculosis and UTIs.

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Saturday, 21 February 2026

NASA’s Hubble spots nearly invisible “ghost galaxy” made of 99% dark matter

Astronomers have uncovered one of the most mysterious galaxies ever found — a dim, ghostly object called CDG-2 that is almost entirely made of dark matter. Located 300 million light-years away in the Perseus galaxy cluster, it was discovered in an unusual way: not by its stars, but by four tightly packed globular clusters acting like cosmic breadcrumbs.

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James Webb Space Telescope captures strange magnetic forces warping Uranus

For the first time, scientists have mapped Uranus’s upper atmosphere in three dimensions, tracking temperatures and charged particles up to 5,000 kilometers above the clouds. Webb’s sharp vision revealed glowing auroral bands and unexpected dark regions shaped by the planet’s wildly tilted magnetic field.

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Scientists may have found the holy grail of quantum computing

Scientists may have spotted a long-sought triplet superconductor — a material that can transmit both electricity and electron spin with zero resistance. That ability could dramatically stabilize quantum computers while slashing their energy use. Early experiments suggest the alloy NbRe behaves unlike any conventional superconductor. If verified, it could become a cornerstone of next-generation quantum and spintronic technology.

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Friday, 20 February 2026

Common pneumonia bacterium may fuel Alzheimer’s disease

A common bacterium best known for causing pneumonia and sinus infections may also play a surprising role in Alzheimer’s disease. Researchers found that Chlamydia pneumoniae can invade the retina and brain, where it sparks inflammation, nerve cell death, and the buildup of amyloid-beta—the hallmark protein linked to Alzheimer’s. Higher levels of the bacterium were found in people with Alzheimer’s, especially those carrying the high-risk APOE4 gene, and were tied to more severe cognitive decline.

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Scientists reveal how exercise protects the brain from Alzheimer’s

Exercise may sharpen the mind by repairing the brain’s protective shield. Researchers found that physical activity prompts the liver to release an enzyme that removes a harmful protein causing the blood-brain barrier to become leaky with age. In older mice, dialing down this protein reduced inflammation and improved memory. The discovery points to a surprising body-to-brain pathway that could inspire new Alzheimer’s therapies.

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Thursday, 19 February 2026

Giant virus discovery could rewrite the origin of complex life

A giant virus discovered in Japan is adding fuel to the provocative idea that viruses helped create complex life. Named ushikuvirus, it infects amoebae and shows unique traits that connect different families of giant DNA viruses. Its unusual way of hijacking and disrupting the host cell’s nucleus offers fresh insight into how viruses may have influenced the evolution of the cell nucleus itself. The finding deepens the mystery of viruses—and their possible role in life’s biggest leap.

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The nearsightedness explosion may be fueled by dim indoor light, not just screens

Myopia is skyrocketing around the world, often blamed on endless screen time — but new research suggests the real culprit may be something more subtle. Scientists at SUNY College of Optometry propose that it’s not just devices, but the combination of prolonged close-up focus and dim indoor lighting that may quietly strain the eyes. When we concentrate on nearby objects in low light, our pupils constrict in a way that may reduce how much light reaches the retina, potentially triggering changes that lead to nearsightedness.

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Wednesday, 18 February 2026

Ancient drought may have wiped out the real-life hobbits 61,000 years ago

A massive, centuries-long drought may have driven the extinction of the “hobbits” of Flores. Climate records preserved in cave formations show rainfall plummeted just as the small human species disappeared. At the same time, pygmy elephants they depended on declined sharply as rivers dried up. With food and water vanishing, the hobbits may have been pushed out—and into their final chapter.

from All Top News -- ScienceDaily https://ift.tt/GAxSfo7