journeys into the planet’s crust to hunt for signs of life. “You get into a small truck or vehicle and go down a long, winding roadway that corkscrews down into the Earth,” she tells The Scientist. By ...

Earth's interior is made up of a series of layers that sit below the surface crust. In order of depth, these layers include the solid, but flowing mantle, the liquid outer core and the solid iron ...

Scientists of course cannot cut into Earth and directly observe its insides. Instead, their knowledge is inferred from the ...

A volcano is an opening in the Earth’s crust that allows magma, hot ash and gases to escape. The water cycle works by using the energy of the Sun to exchange water from oceans and lakes to the ...

David Bressan is a geologist who covers curiosities about Earth. For geologists, a continent is a large area of thick continental crust composed of granite or similar igneous rocks, forming the ...