Earth appears to be a chill blue planet, but deep down, it’s really a metalhead. Its outer core is mostly molten iron (and ...

The Earth's internal layers including the mantle, outer core and inner core. New research shows the inner core undergoes structural transformation likely caused by outer core disturbance.

“The most likely thing is the outer core is kind of tugging on the inner core and making it move a little bit.” While scientists have theorized about the existence of these movements, this ...

The leading theory is that this physical change arises from the inner core’s interaction with the more chaotic outer core, though other ideas include inner core convection or interactions with ...

Earth’s innermost layer is a hot, solid ball of metal surrounded by a liquid metal outer core. For decades, planetary scientists suspected that the solid inner core deformed over time as it spun.