Your skin has a built-in cancer defense and sunlight turns it off

Your skin has a built-in cancer defense and sunlight turns it off

Scientists have uncovered how too much sunlight can flip a hidden switch inside skin cells that makes inflammation spiral out of control and increases the risk of cancer. Their research reveals that UV radiation breaks down a protective protein called YTHDF2, which normally prevents a small RNA signal from activating an immune sensor linked to dangerous inflammation. Once that protection is lost, a surprising chain reaction unfolds inside the cell, turning ordinary sun damage into a potential cancer trigger.

A backwards Bible map that changed the world

A backwards Bible map that changed the world

Five hundred years ago, a Bible accidentally printed with a backwards map of the Holy Land sparked a revolution in how people imagined geography, borders, and even nationhood. Despite the blunder, the map reshaped the Bible into a Renaissance book and spread new ideas about territorial organization as literacy expanded. Over time, sacred geography evolved into political boundary-making, influencing not only early modern thought but modern attitudes about nation-states.

The Sky Today on Sunday, November 30: Watch Titan reappear

The Sky Today on Sunday, November 30: Watch Titan reappear

Looking for a sky event this week? Check out our full Sky This Week column.  November 29: Mercury’s retrograde path ends Titan reappears from an occultation behind Saturn this evening beginning at 6 P.M. EST, a short-lived event visible for those with dark skies in the eastern half of the U.S. Those on the East Coast will Continue reading "The Sky Today on Sunday, November 30: Watch Titan reappear" The post The Sky Today on Sunday, November 30: Watch Titan reappear appeared first on Astronomy Magazine .

New 3D scan reveals a hidden network of moai carvers on Easter Island

New 3D scan reveals a hidden network of moai carvers on Easter Island

A high-resolution 3D model of Rano Raraku shows that the moai were created in many distinct carving zones. Instead of a top-down system, the statues appear to have been produced by separate family groups working independently while sharing techniques. Evidence of varied carving styles and multiple transport routes supports this decentralized picture. The results challenge old assumptions about how large-scale monument building worked on Rapa Nui.

Why some memories last a lifetime while others fade fast

Why some memories last a lifetime while others fade fast

Scientists have uncovered a stepwise system that guides how the brain sorts and stabilizes lasting memories. By tracking brain activity during virtual reality learning tasks, researchers identified molecules that influence how long memories persist. Each molecule operates on a different timescale, forming a coordinated pattern of memory maintenance. The discoveries reshape how scientists understand memory formation.

Scientists find coastal seas acidifying shockingly fast

Scientists find coastal seas acidifying shockingly fast

New findings show that some coastal regions will become far more acidic than scientists once thought, with upwelling systems pulling deep, CO2-rich waters to the surface and greatly intensifying acidification. Historic coral chemistry and advanced modeling reveal that these regions are acidifying much faster than expected from atmospheric CO2 alone, raising serious concerns for fisheries, marine ecosystems, and coastal economies.

242-million-year-old mini predator changes lizard evolution

242-million-year-old mini predator changes lizard evolution

A tiny 242-million-year-old fossil from Devon is shaking up scientists’ assumptions about the earliest members of the lizard lineage. Instead of the expected skull hinges and palate teeth typical of modern lizards and snakes, this ancient creature shows a surprising mix of primitive and unusual traits—along with strikingly large, blade-like teeth. High-resolution synchrotron scans revealed details invisible to the naked eye, helping researchers name the new species Agriodontosaurus helsbypetrae and rethink the origins of lepidosaurs, the diverse group that now includes more than 12,000 species.

Dinosaur mummy found with hooves and a hidden crest

Dinosaur mummy found with hooves and a hidden crest

Scientists have reconstructed the most complete and lifelike profile of Edmontosaurus annectens thanks to an extraordinary preservation process called clay templating, in which a thin clay film captured the dinosaur’s skin, scales, spikes, and even hooves in three dimensions. By combining newly excavated “mummies,” advanced imaging, and artistic reconstruction, researchers revealed a tall crest, a single row of tail spikes, delicate pebble-like scales, and—most remarkably—the earliest known hooves in any land vertebrate.

RSV prevention in newborns could cut asthma risk

RSV prevention in newborns could cut asthma risk

Scientists found that RSV infection early in life can set the stage for childhood asthma, particularly in kids already genetically prone to allergies. The virus appears to skew the developing immune system toward exaggerated responses to everyday allergens. But when newborns were protected from RSV, asthma development was prevented. The results point to a powerful added benefit of RSV prevention tools now being rolled out globally.