Deep within Earth’s core, scientists are uncovering signs of a hidden structure that challenges long-standing models of the planet’s interior.

The internal, infernal machinations of our planet may be way more complex than we suspected. A new, detailed probe of Earth's heart reveals that the rotating inner core doesn't just change in rotation ...

An international research team may have found an explanation for seismic anomalies, the noticeable deviations in the behavior of earthquake waves, in Earth's inner core. Subscribe to our newsletter ...

Shaking from large earthquakes provides hints about something different at the center of the planet. By Kenneth Chang The inner core of the Earth appears to hold an innermost secret. Geology textbooks ...

Far beneath our feet, in a place hotter than any furnace and under pressures that crush solid iron, Earth’s inner core is quietly shifting. The change is not something you will notice when you glance ...