Key Takeaways on Earth's Inner Core Earth's inner core is solid and blistering hot. For decades, scientists have known ...

The result was surprising: Instead of spinning smoothly like a hurricane or a solid sphere, the solitons developed an internal lattice of microscopic vortices. "When the initial conditions are such ...

What happens when you take a solid metal sphere and transform it into a razor-sharp weapon? Watch as master blacksmiths take on this insane challenge, forging an epic knife from a seemingly impossible ...

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward, Earth’s inner core in changing shape.

[DaveMakesStuff] demonstrates a great technique for 3D printing a sphere; a troublesome shape for filament-based printers to handle. As a bonus, it uses a minimum of filament. His ideas can be appl… ...

Is a Dyson sphere possible? In theory, yes, a Dyson sphere is possible. However, the required resources, engineering skill and time it would take to build one may make it an insurmountable ambition.

A new study challenges the long-held assumption that Earth's inner core is hard, like a solid metal sphere.

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 inner core was widely thought of as a solid sphere.