Gigantic hidden fortresses discovered 1,800 miles underground in Earth's mantle, rewrite how the planet's interior works.

Earth is broadly made up of a few different layers, including a solid outer crust, an upper and lower mantle and a core. The upper mantle, which sits just below the crust, is composed primarily of ...

Through her computer model, she determined the isotopic composition of the deep-mantle reservoir from Earth’s formation to the present day. Then, Ferrick modeled a magma plume, which is when a hot ...

Earth’s uneven layers. The rotation of Earth’s solid inner core may have recently paused relative to the mantle and crust and now appears to be reversing direction, Nikk Ogasa reported in ...