The findings suggest Earth’s geological story was partly written in the stars – specifically, in the spiral arms of our home galaxy.

Earth is the only known planet which has plate tectonics today. The constant movement of these giant slabs of rock over the planet’s magma creates continents – and may have even helped create life. In ...

Beneath the picturesque peaks of California’s Sierra Nevada lies a phenomenon that could change our understanding of the ...

All the activity on Earth’s surface — erupting volcanoes, shifting tectonic plates, restless seas and myriad forms of life — depends on the two-part engine under the hood. Directly beneath Earth’s ...