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Estrogen-Only Hormone Therapy Linked to Reduced Alzheimer's Signs in Women's Brains

A large-scale study examining more than 21,000 participants has found that women who used estrogen-only hormone therapy later in life were less likely to develop dementia and exhibited fewer hallmarks of Alzheimer's disease in their brains. The research revealed that hormone therapy use was associated with 39%

Original Collagen Discovered in 66-Million-Year-Old Dinosaur Bones Challenges Fossilization Assumptions

A team of researchers has uncovered compelling evidence that original collagen—the primary protein in bone and connective tissue—can persist inside dinosaur fossils for tens of millions of years. This finding upends a long-standing assumption in paleontology that such organic molecules would degrade completely over geological timescales. The discovery,

Study Reveals Atlantic Ocean's Warming Threshold Depends on Speed of Change

The Atlantic Ocean has more capacity to absorb warming than previously thought—but only if that warming occurs gradually, according to new research. Scientists studying the Atlantic Meridional Overturning Circulation (AMOC) have discovered that the ocean system responds differently depending on the speed of temperature change. When warming happens slowly,

SDSS-V Expands Cosmic Census to Southern Sky with 3 Million New Stellar Spectra

The Sloan Digital Sky Survey's fifth iteration (SDSS-V) has completed a major expansion, bringing its optical spectroscopic coverage to the entire sky for the first time by extending into the Southern Hemisphere. This release adds more than three million new spectra to the survey's database, dramatically

Study Links Combined Vitamin D Deficiency and Belly Fat to Dramatically Higher Mortality Risk

A large-scale study tracking more than 5,500 adults over the age of 50 has uncovered a striking interaction between two common health concerns: vitamin D deficiency and abdominal obesity. Researchers found that when these conditions occur together, the risk of death over a six-year period jumps dramatically—by 123%

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Science Highlights: Malaria Vaccine Breakthrough, Amazon Civilization Discovery, and Lunar Cooperation

Malaria research: The Australian discovery that could turn mosquito bites into vaccine booster shots Scientists in Australia have identified a mechanism by which mosquito saliva, typically associated with transmitting malaria parasites, could be engineered to boost the effectiveness of malaria vaccines. Read more: Malaria research: The Australian discovery that could

NASA Invites India to Join Lunar South Pole Outpost Project

The space relationship between the United States and India is set to deepen as NASA has extended an invitation to ISRO to collaborate on the Moon Base program, part of the broader Artemis initiative aimed at establishing a sustained human presence near the lunar south pole. The Artemis program has