With an equatorial diameter of 7926 miles (12,760 kilometers), our planet Earth is the biggest of the terrestrial planets and ...

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward ...

Scientists have raised concerns that the Earth's inner core may completely halt its rotation by 2040, according to a recent ...

The surface of Earth's inner core appears to be dynamic, changing shape as it rotates, earthquake waves reveal.

But it also opens new questions about how changes in the core could affect the length of our 24-hour day, Earth’s magnetic ...

Seismic wave data previously suggested the Earth’s hot inner core is slowing its spin. Now, researchers say it’s also ...

Earth’s core is located below the middle layer called the mantle and the outer layer –or crust. It consists of two main parts ...

“Redistribution of mass within the Earth’s system produces an effect on Earth’s rotation. While the delay of 0.06 microseconds per day may seem negligible, it is a measurable consequence of ...