A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

The activity beneath the Earth’s surface is often undetectable to us, but it has the power to shape land masses […] ...

How core-mantle differentiation influenced the distribution of volatile elements on Earth. Imagine Earth's history as a ...

Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

The geologist publishes in Spain 'Listening to the Stones', where she tries to define our place in time: "Thinking of Earth as an inert and indolent piece of rock that we can deceive has led us to ...

Partly cloudy. High chance of showers in the north, medium chance elsewhere. Winds east to southeasterly 15 to 20 km/h becoming light in the evening. Sun protection recommended from 9:10 am to 2:20 pm ...

President Trump signed an order Thursday aimed at making it easier for companies to mine the ocean floor. Scientists and ...

Researchers created 3D models of ancient tracks in Oregon’s John Day Fossil Beds National Monument. The study revealed a ...