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

Earth's inner core has changed shape over the past 20 years. A team of scientists studied the core's behavior to understand why its rotation slowed down ...

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

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

With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface. Earth is also unique in terms of ...

the planet’s rusty red surface tells a story of destruction. Billions of years ago, the fourth planet from the sun could have been mistaken for Earth’s smaller twin, with liquid water on its ...

certain aspects of Earth's geology keep the plate tectonic engine chugging along. For a planet to sustain plate tectonics, it must have a convective mantle, Foley said. Cold, dense surface ...