New study reveals that Earth's inner core is undergoing unexpected structural changes, challenging long-held assumptions ...

The Earth is made up of four main structures: the outer crust ... While scientists obviously can't travel down to study these layers directly, they are able to learn about them by carefully ...

A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have ...

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

Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

Whether convection in the Earth's mantle extends through its entire ... corresponding to the major seismic discontinuity that marks the boundary between the upper mantle and lower mantle.

ABC News chief meteorologist Ginger Zee looks at how a decades long international effort to heal the ozone layer could be applied ... be the key to all life on Earth, but it is not the reason ...

On the world's first Asteroid Day, Nina Burleigh discovers that Nasa has already commissioned a team of 'planetary defenders' ...

Storm Harlow made its way from the Ohio Valley to the Mid-Atlantic Tuesday. Here is our coverage of the impacts from the ...

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