A metal detectorist discovered 934 Roman silver coins near Cologne, Germany, uncovering the country's largest known hoard from Hadrian's reign.

Ancient algae preserved in Arctic seafloor mud suggest climate models overestimate winter sea ice, pointing to less ice in ...

Engineers built tattoo inks that switch on under UV light and fade indoors, and the inventor has worn the color-changing ...

A modest gamma-ray burst left an unusually bright afterglow. Astronomers suggest that a jet angled away from Earth could ...

Fewer than 250 swift foxes remain in Texas. Two dogs are now guarding cattle on the grassland to test whether they can keep ...

An AI search of more than 50 million chemicals identified 92 potential sugar substitutes that could deliver sweetness without ...

An astronaut photo reveals the San Juan River’s dramatic bends in southern Utah, where an ancient waterway carved deep into a ...

Most anti-aging products already count as drugs under U.S. law, a new analysis finds. However, proving that they work at all ...

Vitamin K deficiency rose among U.S. infants as fewer newborns received the shot that helps prevent dangerous bleeding.

A crocodile skull from the rock of the Great Sphinx was misnamed for a century. CT scans show where Herugavialis fits among ...

A machine learning program found a shift in small earthquakes before three large quakes but nothing before two others. It ...

A Pompeii cupboard buried in 79 AD held 38 bronze coins, 36 from Nero's reign, 24 childhood charms in a cloth bag and, nearby ...