How does the Earth generate its magnetic field? While the basic mechanisms seem to be understood, many details remain unresolved. A team of researchers has introduced a simulation method that promises ...
This effect, they said, is likely to cause metallic core material to infiltrate parts of the lowermost mantle. "If true, the results suggest iron from the core has been leaking into the mantle for ...
The Earth's inner core was once liquid, but has turned solid over time. As the Earth gradually cools, the inner core expands outwards at the surrounding iron-rich liquid "freezes." That said, it ...
During the decay of radioactive elements in the early history of the solar system, many asteroids melted and the iron they contained, being dense, sank to the centre to form a metallic core.
Perhaps more importantly, it will give planetary scientists a chance to study an iron core like the one located in the center of the Earth—and uncover a new kind of metal world in the solar system.