Geological time, generally considered as a system of eras, periods and epochs materialized in rock strata, might actually follow a simple and unifying model. Indeed, a new study led by physicist Shaun ...

Earth's 4.5 billion year geological history is full of death and rebirth, mass extinctions and explosions of biodiversity, with different periods often marked by cataclysmic changes that radically ...

Geologists may have voted down formal recognition of the Anthropocene as a geological epoch, but we still need to act to prevent ecological crisis. A view of the glaciers as polar bears, one of the ...

Every half-million years or so, for unknown reasons, the earth’s magnetic field suddenly flips. Within a period of 10,000 years—a mere instant on the geological time scale—the north and south magnetic ...