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Science News

Recent reporting, background, and summaries from the science desk.

Dark Matter Evidence Claimed by Tokyo Prof
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Dark Matter Evidence Claimed by Tokyo Prof

Astrophysicist Professor Tomonori Totani from the University of Tokyo has announced a potential breakthrough in the century-long quest for dark matter, claiming to have found the first direct evidence of the elusive substance through gamma rays emanating from the Milky Way's center. This groundbreaking research, published on November 25, 2025, suggests that these gamma rays, observed with NASA's Fermi Gamma-ray Space Telescope, bear the signature of dark matter annihilation, potentially indicating a new particle beyond the Standard Model if independently verified.

Ethiopia Volcano Erupts, Sparks Concern
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Ethiopia Volcano Erupts, Sparks Concern

Ethiopia's Hayli Gubbi volcano erupted on November 23, 2025, for the first time in nearly 12,000 years, unleashing a massive ash plume 14-15 kilometers high that drifted eastward across the Red Sea, Arabian Peninsula, and as far as India. This unprecedented "virgin volcanic event" has captivated global scientific attention, disrupted air travel across affected regions, and raised concerns for local livestock herders in the remote Afar region.

AlphaFold Reveals Heart Disease Key
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AlphaFold Reveals Heart Disease Key

Scientists, leveraging Google DeepMind's AlphaFold, have achieved a monumental breakthrough by successfully mapping the intricate structure of apolipoprotein B100 (apoB100), the large protein central to forming "bad cholesterol," which promises to redefine the understanding and treatment of heart disease, the leading cause of death globally. This unprecedented atomic-level view, made possible through an innovative combination of cryo-electron microscopy and AlphaFold's predictive power, is expected to revolutionize pharmaceutical research by enabling the design of novel preventative therapies for atherosclerosis.

Nanowire Unlocks Brain Cell Secrets
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Nanowire Unlocks Brain Cell Secrets

Scientists have achieved a groundbreaking milestone by engineering a novel nanowire platform that precisely mimics brain tissue, enabling the unprecedented study of astrocytes in their natural, three-dimensional environment. This innovative technology, developed by researchers from Johns Hopkins University and the National Research Council of Italy, promises to revolutionize our understanding of brain health and disease by allowing detailed observation of these crucial cells without altering their natural form.

40,000th Near-Earth Asteroid Discovered
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40,000th Near-Earth Asteroid Discovered

Astronomers have reached a significant milestone, identifying the 40,000th near-Earth asteroid (NEA) in November 2025, a crucial achievement for global planetary defense efforts. This rapid acceleration in discovery, with 10,000 NEAs added in just three years due to advanced technology, highlights both Earth's vulnerability and the ongoing need for vigilance despite no immediate threats from known objects.

Deep-Sea Whales, Dolphins: PFAS Crisis
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Deep-Sea Whales, Dolphins: PFAS Crisis

Groundbreaking research reveals that marine mammals, including deep-sea species, are heavily contaminated with "forever chemicals" (PFAS), challenging previous assumptions that these habitats offered protection from human-made pollutants. This alarming discovery, based on a study of whales and dolphins in New Zealand waters, raises significant concerns about the long-term health of these creatures due to the bioaccumulation and biomagnification of these toxic substances.

Enigmatic 3I/ATLAS Object Stumps Scientists
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Enigmatic 3I/ATLAS Object Stumps Scientists

Scientists are captivated by 3I/ATLAS, a newly discovered, fast-moving metallic interstellar object whose unprecedented trajectory and dense composition are baffling experts. Traveling at an astonishing 245,000 km/h, this third confirmed interstellar visitor has sparked intense speculation about its origins, yet comprehensive analysis confirms it poses no direct threat to Earth.

Breakthrough Gel Regenerates Tooth Enamel
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Breakthrough Gel Regenerates Tooth Enamel

British researchers have unveiled a groundbreaking protein-based gel capable of naturally regenerating tooth enamel, offering a fluoride-free solution that could revolutionize dental care by combating tooth decay and erosion. This innovative material, developed at the University of Nottingham, mimics natural biological processes to form new enamel that is structurally and mechanically as strong as natural enamel.

NASA: Interstellar Object 3I/ATLAS is Comet
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NASA: Interstellar Object 3I/ATLAS is Comet

NASA has officially declared the interstellar object 3I/ATLAS to be a comet, definitively quashing widespread "alien rumors" that had surrounded the celestial visitor. This crucial clarification, announced today, November 22, 2025, was made possible by extensive observations from a coordinated network of spacecraft, including those near Mars, providing unprecedented insight into its true nature as only the third confirmed interstellar object in our solar system.

New Fault Healing Discovery Shakes Quake
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New Fault Healing Discovery Shakes Quake

Scientists at the University of California, Davis, have made a groundbreaking discovery that deep earthquake faults can heal remarkably fast, sometimes within mere hours, by mineral grains welding together under intense heat and pressure. This rapid self-repair mechanism challenges long-held assumptions about fault behavior and could significantly reshape how experts model and predict seismic events, with profound implications for hazard assessments.

Japan Spacecraft Faces Spinning Asteroid
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Japan Spacecraft Faces Spinning Asteroid

New observations reveal that asteroid 1998 KY26, the target for Japan's Hayabusa2 mission, is significantly smaller and spins much faster than previously estimated, posing complex challenges for the spacecraft's planned encounter and potential touchdown maneuvers. Despite these hurdles, the mission remains a high priority, promising unprecedented insights into rapidly rotating micro-asteroids, the early solar system, and crucial data for asteroid defense strategies.

Vaccine-Autism Reversal Sparks CDC Crisis
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Vaccine-Autism Reversal Sparks CDC Crisis

The U.S. Centers for Disease Control and Prevention (CDC) is facing significant backlash after reportedly altering its website to suggest that the claim "vaccines do not cause autism" lacks sufficient evidence, a move that contradicts decades of scientific consensus. This controversial change, allegedly implemented without the consultation of career scientists, has ignited fears among public health experts that it will undermine public trust in vaccinations and could lead to a resurgence of preventable diseases.

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