For years, the oldest widely accepted cave art came from Spain, where mineral crusts dated paintings to more than 64,000 years. That work also relied on uranium decay in crusts, so it offered a ...

Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and ...

A new study reveals that chemicals used to replace ozone-damaging CFCs are now driving a surge in a persistent “forever ...

Lemons and limes are similar nutritionally. Learn about the benefits of including these tart fruits in your diet.