The inner core was discovered in 1936, and its size (about 20% of Earth's radius) is one of the best-constrained properties of the deep Earth.

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

USC scientists have made a groundbreaking discovery about the nature of Earth’s enigmatic inner core, revealing for the first time that this 1,500-mile-wide ball of iron and nickel is changing.

The surface of Earth's inner core may be shape-shifting, new research suggests. The study, published Feb. 10 in the journal Nature, looked at earthquake waves that have skimmed the edge of the ...

It is true that the outer core generates electrical currents that sustain the planet’s magnetic field, but Vidale says shifts in the Texas-size inner core are too minuscule to have an impact.

This metallic inner core, about 1,500 miles wide, was discovered in the 1930s. Both the inner and outer cores consist primarily of iron and nickel.

Earth's inner core is undergoing structural transformation. Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now the ...

Despite the inner core’s starring role in making life on Earth possible, scientists are still discovering fundamental facts about this ball of metal.

As much as we have explored and modeled our planet, there are a number of mysteries that surround the Earth's inner core. This isn't that surprising, as it's pretty difficult to study a region ...

The inner core is made of solid iron-nickel about 3,000 miles below the surface of the Earth. Scientists believe that the inner core’s rotation began to slow down in 2010 , but what that really ...

New research may have finally figured out what is inside the Moon, and it has scientists excited to dig deeper.

The surface of Earth's inner core may be shape-shifting, new research suggests. The study, published Feb. 10 in the journal Nature, looked at earthquake waves that have skimmed the edge of the inner ...