Deep beneath our feet, far beyond the reach of any drill, new research suggests that Earth’s center is far more intricate than a simple metal ball. Instead of a single solid sphere, the inner core ...

(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 ...

Scientists have discovered that Earth’s inner core may not be fully solid. (Image: Canva) Earth's inner core may be superionic, behaving as both solid and liquid. Discovery explains slow earthquake ...