Scientists have identified another possible commonality between Earth and Mars: a solid inner core. Scientists have ...

A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than scientists thought.

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.

A groundbreaking study reveals that the Moon has a solid inner core with a density comparable to iron, reshaping our ...

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.

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 of ...

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 ...

A major scientific breakthrough has settled a decades-old debate about the moon’s interior. Researchers have confirmed that ...

How hot is it? What's it made of? New discoveries are even calling into question whether the core is solid. A new study out this week said that the Earth's inner core is less solid than previously ...

Earth’s inner core is less solid than previously thought, reveals new research. American scientists have detected structural changes near the planet’s center. Changes to the inner core have ...