Earth's inner core is undergoing structural transformation. Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now the ...

Joanne Stephenson, a geophysicist at the Australian National University, clarified that the four primary layers of the Earth are the crust, the mantle, the outer core, and the inner core. Much of what ...

Earth’s core is pretty dynamic. Its spin speeds up and slows down based on how its two primary layers are behaving. As we improve the waveform techniques used to study the deepest layer ...

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.

In other words, the inner core’s shape could be changing over time because of complex interactions among the Earth’s layers. The researchers found that changes in seismic waves traveling ...

The new research adds to the mysteries of the planet’s deepest interior region. By Kenneth Chang The inner core at the center of the Earth, a ball of iron and nickel about 1,500 miles wide, may ...

The surface of ... into the core's interior. But they did see changes in the same spots in waves that just glanced the surface of the core, elucidating its outermost layer. Since the first studies ...

The next step will be making sure we're right, and honing our models." A diagram explaining the slowing rotation of Earth's inner core. (Edward Sotelo/USC) Earth's solid inner core represents one of ...

Researchers have found evidence of changes in the structure of the Earth's core. University of Southern California team, led by Professor John Vidale, was investigating the inner core's rotation ...