The inner core is made of solid iron-nickel about 3,000 miles below the surface of the Earth. Scientists believe that the inner core’s rotation began to slow down in 2010 , but what that really ...

Actually, Earth’s Solid Core Isn’t All That Solid. Liquid iron may still be trapped inside. By Tim Newcomb Published: Jul 07, 2023 1:00 PM EDT. 3. Rost-9D // Getty Images.

Life on Earth became possible when the planet's solid inner core emerged hundreds of millions of years ago, according to new research. Scientists said that around 565 million years ago, ...

The Earth’s inner core is incredibly tricky to study, since it’s buried beneath thousands of miles of rock. New seismic studies suggest that it’s not just a solid ball of iron, as has been ...

Without the aid of unobtainium to explore the Earth’s depths (a la 2003’s The Core), scientists instead have to rely on seismograms that track seismic waves as they travel through the Earth.