a solid ball of metal. At least, that is what scientists thought. New research published in the journal Nature Geoscience found that the core's shape has shifted during the past 20 years.

The metal microbot, made out of liquid metal ... including fast movement and heavy load bearing when it is in its solid state, and shape changing in its liquid state,” Chengfeng Pan, an engineer ...

Earth’s innermost layer is a hot, solid ball of metal surrounded by a liquid metal ... changes taking place over the past 20 years in the shape of the inner core. Signs of the core’s ...

When Majidi and his colleagues used an alternating magnetic field – one whose shape changes predictably over time – electrons in the robot’s liquid metal ... this good at changing its ...

The shape of an antenna’s front end dictates many of its operating parameters. Once it’s manufactured, those characteristics are locked in. A shape-changing ... to heat the metal of the ...