With Simon Stähler and co-authors reporting a fully liquid core and Huixing Bi and colleagues reporting a solid inner core, it might seem as if there will be some controversy. But that is not the case ...

Scientists revealed Wednesday that Mars' innermost core appears to be a solid hunk of metal just like Earth's. The Chinese-led research team based their findings on seismic readings from NASA's ...

That solid iron inner core of Earth may still hold liquid iron, according to a new study from the University of Utah. Scientists have used seismic waves to research Earth’s inner core, uncovering a ...