Exactly when and how plate tectonics started, however, is a matter of debate. Now, in a study published March 19 in the ...

Scientists say they have uncovered new clues in Australia about when plate tectonics began on Earth, the only known planet to ...

UNIVERSITY PARK, Pa. — The Earth’s crust continued a slow process of reworking for billions of years, rather than rapidly slowing its growth some 3 billion years ago, according to a Penn State-led ...

Stable parts of the Earth's crust may not be as immovable as previously thought. While much of the crust is affected by plate tectonic activity, certain more stable portions have remained unchanged ...

Using computer technology to create three-dimensional models of the earth's mantle, Purdue's Scott King has found evidence that some dramatic features of the earth's surface could be the result of ...

The colossal movements of tectonic plates shape our world, influencing the composition of Earth’s atmosphere, the planet’s ...