Earth's magnetic field, generated by its molten core, deflects 1.5 million tons of solar material every second. Without it, solar winds could strip away our atmosphere—just like they did to Mars.

The Earth’s inner core is separated from the rest of the planet by its liquid outer core, so it rotates at a different pace and direction.

NPR's Ayesha Rascoe talks to John Vidale, professor of earth sciences at the University of Southern California, about new research suggesting the rotation of Earth's inner core may be slowing down.

Earth's inner core is lopsided: One side grows faster than the other, a new study says. In the core's eastern half, located under Indonesia, 60% more iron crystals form than on the other side ...

For 540 million years, Earth’s magnetic field and atmospheric oxygen levels have danced in sync — and NASA scientists just ...

In the mid-1990s scientists found evidence that Earth’s inner core, a superheated ball of iron slightly smaller than the moon, was spinning at its own pace, just a bit faster than the rest of ...

Ample sunshine, ice cream, and afternoons at the beach might leave you wishing that summer would never end. Unfortunately, ...

It may seem fantastical to say there is a planet within Earth, but conceptually it is true. Ever since the 1990s, geophysicists have known that Earth's inner core— a ball of iron with a radius ...

Earth's core is a fascinating place. It's extremely hot, at times misunderstood, and creates the magnetic field that shields life from dangerous solar radiation.

Two Australian scientists argue in a new paper that within the Earth’s core, based on measurements of waves reverberating along the Earth’s diameter, is an innermost inner core, about 800 ...

Yes, Earth’s core may have changed its rotation, but that’s not a new phenomenon. Scientists recently discovered that Earth’s dense inner core may have stopped rotating relative to the surface.