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Radiocarbon analysis uncovers possible traces of hidden earthquakes off Japan's coast
Science News

Radiocarbon analysis uncovers possible traces of hidden earthquakes off Japan's coast

Researchers at the University of Tokyo have used a new type of radiocarbon analysis to study a sediment core taken from the Kumano Sea off the coast of Japan. This has revealed multiple "hidden" traces of previously unknown earthquakes in the Nankai Trough, where the country's next megaquake is expected to occur. Reconstructing a more accurate picture of the past will help predict future geophysical events and prepare for potential disasters. The work is published in Radiocarbon.

📅 2026-11-09 01:00:01    •    Phys.org
Small histone differences help shape gene regulation during sperm development
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Small histone differences help shape gene regulation during sperm development

Researchers from Kyushu University have found that H3mm15, a histone H3.3 subvariant, contributes to normal sperm development in mice by helping regulate gene expression during spermatogenesis. The findings show that H3mm15 cannot be interchanged with conventional H3.3; although the proteins differ at only three amino acids, they behave differently in chromatin, the DNA-protein structure that packages genetic material.

📅 2026-11-09 00:10:01    •    Phys.org
Scientists discover stunning new Amazon fish that may already be endangered
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Scientists discover stunning new Amazon fish that may already be endangered

Researchers have discovered a stunning new species of tiny orange-patterned fish in the Brazilian Amazon, but its survival may already be at risk. Named Laimosemion laranja, the brilliantly colored killifish measures less than three centimeters long and was found in just three small forest pools. Its extremely limited habitat is threatened by mining, deforestation, pollution, and expanding development.

📅 2026-11-08 23:56:14    •    ScienceDaily
Scientists wipe out deadly brain tumors in every mouse tested with new cancer therapy
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Scientists wipe out deadly brain tumors in every mouse tested with new cancer therapy

Scientists at UC San Francisco have developed a powerful new cancer therapy that remains inactive until it reaches the brain, where it switches on to attack deadly tumors. The engineered immune cells, called B-SYNC CAR-T cells, completely eliminated diffuse midline glioma (DMG), an aggressive childhood brain cancer that is almost always fatal within a year, in two mouse models.

📅 2026-11-08 23:24:50    •    ScienceDaily
An ancient ocean full of giant predators reveals a surprising twist in evolution
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An ancient ocean full of giant predators reveals a surprising twist in evolution

A remarkable fossil discovery in Colombia is challenging how scientists understand major evolutionary changes in Earth's history. Researchers uncovered an incredibly diverse ancient marine ecosystem where giant reptiles, sharks, and other creatures thrived as older evolutionary groups approached extinction and newer ones emerged. They call this previously unrecognized pattern a "Biotic Inflection," suggesting that major transformations in life can occur without mass extinctions.

📅 2026-11-08 22:45:01    •    ScienceDaily
Einstein's equations reveal how gravity could break, reconnect, and release energy
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Einstein's equations reveal how gravity could break, reconnect, and release energy

More than a century after Einstein revolutionized our understanding of gravity, scientists have uncovered a surprising new phenomenon hidden within his equations. Researchers at Columbia University and Universidad Adolfo Ibáñez have identified a theoretical process called "gravitational reconnection," in which structures within gravitational fields can break apart and reconnect, transferring energy into matter.

📅 2026-11-08 22:14:42    •    ScienceDaily
Liquid-assisted crystal growth cuts perovskite defects for efficient solar cells and LEDs
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Liquid-assisted crystal growth cuts perovskite defects for efficient solar cells and LEDs

A research team led by professor Seong Sik Shin of the SKKU Advanced Institute of Nanotechnology (SAINT) at Sungkyunkwan University (SKKU), in international collaboration with the Korea Research Institute of Chemical Technology (KRICT), the University of California, San Diego, and Princeton University, has developed a next-generation perovskite semiconductor thin film with dramatically reduced defects. Using the same material platform, the researchers demonstrated both high-performance solar cells and LEDs.

📅 2026-11-08 22:00:01    •    Phys.org
JWST tracks more than 100 magnified stellar events in the Dragon galaxy
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JWST tracks more than 100 magnified stellar events in the Dragon galaxy

Using the James Webb Space Telescope (JWST), a team of astronomers identified 104 magnified stellar events in a galaxy known as the Dragon, located around 6.5 billion light-years away. This discovery more than doubles the previous record of 44 such detections in the same galaxy. Because these kinds of events reveal some of the most luminous stars and likely the presence of dark matter, this study offers a rare look at the galaxy's stellar population along with a possible hint at the nature of dark matter.

📅 2026-11-08 19:20:01    •    Phys.org
Game theory helps SETI search for alien civilizations
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Game theory helps SETI search for alien civilizations

The search for extraterrestrial intelligence (SETI) is mostly concerned with where to look for technosignatures from another civilization. Between 2012 and 2015, SETI's Project Phoenix targeted about 1,000 sun-like stars for signs of intelligent life. But where to look might not be as important as when to look, according to scientists at SETI.

📅 2026-11-08 15:30:06    •    Phys.org