(CNN) — Deep inside Earth is a solid metal ball that rotates independently of our spinning planet, like a top whirling around inside a bigger top, shrouded in mystery. This inner core has intrigued ...

Earth's inner layers have just got a bit more complicated, with scientists discovering a whole new inner core within the center of the planet. Research released on February 21 in the journal Nature ...

(CN) — Researchers from the University of Southern California released a study Friday that suggests that the inner core of the Earth oscillates, which could explain the variation in the length of a ...

Earth’s inner core has long challenged researchers because seismic waves do not move through it uniformly. Compressional waves generated by earthquakes travel roughly 3 to 4 percent faster along Earth ...

More than 5,000 kilometers beneath us, Earth’s solid metal inner core wasn’t discovered until 1936. Almost a century later, we’re still struggling to answer basic questions about when and how it first ...

The iron-rich core at the center of our planet has been a crucial part of Earth's evolution. The core not only powers the magnetic field which shields our atmosphere and oceans from solar radiation, ...

Earth's inner core is solid and blistering hot. For decades, scientists have known the inner core is solid thanks to the pioneering work of Danish seismologist Inge Lehmann, who first proposed its ...

“We might have volcanoes on the inner core boundary, for example, where solid and fluid are meeting and moving,” he said. Because the spinning of the inner core affects movement in the outer core, ...

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 ...

A University of Minnesota professor said the Earth’s inner core hasn’t stopped but has slowed down in response to a CNN article published Jan. 26 titled “Earth’s Core May Have Stopped Turning and ...

"We might have volcanoes on the inner core boundary, for example, where solid and fluid are meeting and moving," he said. Because the spinning of the inner core affects movement in the outer core, ...