Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

Build stronger core in 8 minutes with a bodyweight routine that beats long gym workouts and supports posture and balance ...

It is hard to know what is going on over 3000 kilometers beneath our feet, but until recently scientists were fairly confident that they understood the way the iron atoms in the Earth's core packed ...

Restore muscle tone and balance with 5 standing exercises that fire your whole body and feel easier on joints after 65.