Scientists have identified a brain protein that may help Alzheimer’s spread, revealing a potential new target for slowing the disease’s progression. Alzheimer’s disease is closely linked to the accumulation of a toxic form of the protein Tau inside the brain. As Tau damage reaches additional brain regions, more neurons are harmed, symptoms intensify, and the [...]

Biological defenses make losing weight and keeping it off unusually difficult. Better treatments, healthier environments, and sustainable habits may support long-term health more effectively than willpower alone. For years, weight loss has been framed as a simple test of discipline: consume fewer calories and exercise more. Modern research, however, shows that body weight is regulated [...]

Even moderate amounts of walking may help protect brain function and slow changes linked to Alzheimer’s disease. New research reveals a modest amount of daily movement may help protect the brain from Alzheimer’s disease, but the apparent benefit does not involve the biological target researchers expected. Using pedometers, researchers followed nearly 300 older adults with [...]

A research team found reproducing populations of Manila clams in Cape Cod and Boston Harbor. A stretch of Atlantic shoreline that had remained free of Manila clams now appears to support reproducing populations of the invasive shellfish. Biologists led by the University of Massachusetts Amherst, MIT Sea Grant at the Massachusetts Institute of Technology and [...]

Cylinder seals were far more than ancient signatures. They fused art, power, and belief into objects that revealed exactly who their owners were. The earliest form of the signature came from ancient Iraq in the form of cylinder seals. Mesopotamians, the ancient inhabitants of the land between the Euphrates and Tigris rivers, are credited for [...]

Tutankhamun’s 1925 examination left behind evidence that official accounts largely omitted. A closer look at the records reveals a troubling gap between scientific history and what actually happened. November 2025 marks 100 years since archaeologists first examined Tutankhamun’s mummified remains. What followed wasn’t scientific triumph—it was destruction. Using hot knives and brute force, Howard Carter’s [...]

Future spacecraft may travel farther by drawing momentum from planets, sunlight, and the solar wind instead of onboard fuel. Every conventional rocket faces the same problem: it must carry the material that propels it. Since Konstantin Tsiolkovsky described the rocket equation in 1903, spacecraft have burned fuel and expelled it backward to move forward under [...]

Scientists may have found a more realistic set of thermodynamic rules for black holes that never stop changing. Black holes are among the most extreme objects known in the universe. They compress enormous amounts of mass into remarkably small regions, creating gravitational fields so powerful that nothing, not even light, can escape once it crosses [...]

China’s Tianwen-1 orbiter caught a rare glimpse of 3I/ATLAS as it swept past Mars, revealing the hazy coma and tail of a comet born beyond our solar system. The interstellar object known as 3I/ATLAS just flew past Mars, and China’s Tianwen-1 mission managed to snap some pics with its high-resolution camera. According to the China [...]

A negative scan does not always mean recurrent prostate cancer is nowhere to be found. Sometimes, the disease may simply be too small or too faint to appear yet. New research suggests that repeating a PSMA PET scan later can reveal cancer that was missed the first time. Among patients with rising prostate-specific antigen (PSA) [...]

A population study suggests the human body may already be responding to changes in the composition of the atmosphere. The air outside may be leaving a subtle signature in human blood. Researchers have identified gradual changes in a key carbon dioxide-related blood marker and warn that it could approach the upper limit of its healthy [...]

New research suggests that low oxygen levels may help alleviate disease caused by defects in mitochondrial quality control. Oxygen is essential for people—and most other organisms—but more is not always better. When oxygen accumulates beyond what cells can safely use, it can become toxic and contribute to serious health problems. In the brain, excess oxygen [...]

Researchers have developed a visible-light-driven method that could help chemists build more complex drug-like molecules in fewer steps. A blue light commonly used in aquariums and indoor gardens could help chemists solve one of drug discovery’s persistent challenges: building more intricate molecules without adding a long series of costly reactions. Many medicines are based on [...]

A reverse prediction test suggests that supposedly brainlike AI models may rely on visual strategies the primate brain does not use. Artificial intelligence can sometimes predict how the brain responds when people recognize objects. But that resemblance may hide an important weakness: the internal workings of today’s vision models do not necessarily match the processes [...]

A leaf-eared mouse living more than 6,700 meters (22,000 feet) above sea level in the Andes has shattered assumptions about where mammals can survive. Near the summit of an Andean volcano, where the air contains barely half as much oxygen as it does at sea level, scientists found something that should not have been there: [...]

Aging appears to alter how key cerebellar neurons fire, with measurable effects on movement and coordination. Aging often brings slower movement, weaker balance, and reduced agility, but the brain changes behind these losses have been difficult to identify. McGill University researchers have now directly linked declining activity in Purkinje cells, an important type of neuron [...]

New data reveal major geographic disparities and highlight the urgent need for global action on prevention, early detection, and equitable access to treatment. For roughly one in five people worldwide, cancer will become part of their lifetime. Global Cancer Statistics, 2026 estimates that nearly 21 million people were diagnosed with cancer in 2024 and 9.8 [...]

New research examines how antioxidants may influence the risk of cancers linked to digestion. Vitamin C may do more than support the immune system. It could also help block chemical reactions in the stomach that are linked to cancer risk. New mathematical modeling from the University of Waterloo suggests the vitamin may help explain why [...]

Scientists say some of the traits that define modern humans may have evolved only after long-standing biological and cultural barriers were broken. Human evolution is often presented as a clear progression: brains grew larger, faces became smaller, tools improved, and our ancestors gradually became more like us. A new study suggests that this familiar story [...]

Researchers found that smelling chocolate before and during resistance exercise may subtly change how the brain responds to effort and appetite. Halfway through a difficult leg workout, most people would not expect the smell of chocolate to help them complete more repetitions. Yet a study published in Frontiers in Physiology suggests that exposure to dark [...]