Earth science concentrates on investigating how the planet works and why. This field delves into the many layers of the Earth and explains how those pieces fit together into a cohesive structure.

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward ...

"We don't know for sure," Bradford Foley, a geodynamicist at Penn State, told Live Science. "I think it's still considered one of the great unsolved problems in geophysics today." Earth's ...