This method revealed that seismic waves travelling near the poles were moving faster than those near the equator. By comparing their results to different models of the Earth's interior ...

While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, ...

First, I’m going to find out which half of the Earth he’s on. Running around the middle of the planet is an imaginary line called the Equator. Well I’m on the half that’s above the Equator ...