Add Yahoo as a preferred source to see more of our stories on Google. Researchers have found evidence of changes in the structure of the Earth's core. University of Southern California team, led by ...

While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is Earth's history. Our history. Research shows there are little-known ...

For decades, schoolbooks have painted a relatively simple picture of Earth’s inner workings—a hard crust, a thick mantle, a swooshing liquid outer core, and a solid inner core at the center. But ...