A bullet-speed experiment reveals that the Earth's inner core may be softer and more dynamic than previously thought.

It’s one of nature’s topsy-turvy tricks that the deep interior of Earth is as hot as the Sun’s surface. The sphere of iron that resides there is also under extreme pressure: about 360 million times ...

The planet's core could be a mushy mix of solid and liquid. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earth's inner core may be filled with ...

Scientists at the Australian National University have made a highly unusual discovery thousands of miles beneath the Earth’s surface: a doughnut-shaped structure within our planet’s liquid core. The ...