Earth's solid inner core, which helps to strengthen its magnetic field, formed about 1.3 billion years ago when the planet was already 3.2 billion yeas old, a study claims. The development of this ...

No human or machine has ever been 3,200 miles beneath Earth's surface because the depth, pressure and temperature make it inaccessible. But scientists have long believed that our planet's inner core ...

Though Earth's innermost core is solid, new research suggests that it hosts a lot of variation. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Scientists have discovered that Mars has an interior structure similar to Earth’s. Results from Nasa’s Insight mission suggest that the red planet has a solid inner core surrounded by a liquid outer ...

The solid metal core of Earth does not rotate perfectly in time with the outer layers of the planet, and new research confirms that it has now reversed direction. Seismic waves passing through the ...

Scientists have discovered that Earth’s inner core may not be fully solid. A rare “superionic” state of matter could explain ...

There may be hidden layers to Earth’s core dictated by chemical composition. In A Nutshell Lab experiments suggest Earth’s ...