For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

LOS ANGELES — Scientists have just detected something unusual happening 3,000 miles beneath our feet. New research from an international study reveals that Earth’s inner core, a ball of mostly ...

Scientists from the United States and China have concluded that the Earth's inner core has ... of the liquid outer core. This discovery sheds new light on the dynamics of Earth's interior and ...

The next layer is the mantle, which makes up most of Earth's volume and is composed of dense, semi-solid rock. Then there is the outer core, made of liquid metal, and the inner core, a solid ball ...

A new study analyzing decades of seismogram data shows that physical changes can occur at the surface of the Earth’s inner core ... physical structure of Earth’s core is far from settled ...

as it enhances our understanding of inner core dynamics,” said Dr. Yoshi Miyazaki, an associate professor in the department of Earth and planetary sciences at Rutgers University in New Jersey.

Scientists say that the inner core of Earth may have changed shape in the past 20 years, according to a group of scientists. The inner core is usually thought to be shaped like a ball, but its ...

but Vidale hopes it can help researchers untangle further mysteries related to the inner core and lead to better understanding of Earth’s thermal and magnetic fields. “We hope it has broader i ...

Credit: USC/Edward Sotelo The USC scientists were studying the waveforms when they came upon some surprising data that contradicted our previous understanding of Earth's inner core. A dataset of ...

“We can compare the signals that we see when the inner core is returned to the same position as it was in some other time and see if there’s differences that can’t be explained by the rotation,” ...