But a few years ago, Stephenson and colleagues found evidence Earth's inner core may actually have two distinct layers. "It's very exciting – and might mean we have to re-write the textbooks!" ...

The team used a search algorithm to trawl through and match thousands of models of the inner core with observed data across many decades about how long seismic waves take to travel through Earth ...

A computer model visualization ... the inner core, a solid ball of iron and nickel as hot as the surface of the sun. By watching how the earthquake waves behave inside the Earth's mantle ...

This appears to be the case, to a rather stunning extent, in the instance of the reporting this week around new findings that researchers say shows the rotation of Earth’s inner core is slowing ...

The same team previously drilled a core about 800,000 years old. Analysis of the ancient ice is expected to show how Earth's atmosphere and ... of Beyond EPICA, the project to obtain the core.