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

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 ...

The solid inner core at the center of the Earth, surrounded by the outer core, mantle and crust. Here’s why: While it is well known that a material must be at or below its freezing temperature to be ...

New research suggests that Earth’s solid inner core might not be as rigid as once believed. Instead, it could exist in an ...

New research suggests that the Earth's solid inner core is softer and more dynamic than previously thought, changing ideas.

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

Cartoon of the Earth with cutaway showing the mantle and inner and outer core. Magnetic field lines produced by the geodynamo extend into space and interact with the solar wind. The iron-rich core at ...