Could we be trapped inside a simulated reality, rather than the physical universe we usually assume? It’s a tantalizing theory, long theorized by philosophers and popularized by the 1999 blockbuster ...

Over a thousand miles from the surface, in Earth’s D” layer—right on the edge of the liquid metal outer core—there is a weird acceleration of seismic waves. Experiments recreating the phenomenon in a ...

A section of Earth’s mantle beneath Oman appears to be unusually warm, in what researchers say may be the first known “ghost plume” – a column of hot rock emanating from the lower mantle without ...

Southwest Research Institute’s Dr. Simone Marchi collaborated on a new study finding the first geophysically plausible scenario to explain the abundance of certain precious metals — including gold and ...

Visualisation of seismic model S40RTS (Ritsema et al., 2011), showing the LLVP (large red area) under Africa, made using the GPlates software. Credit: Jeroen Ritsema et al. A new study led by ...

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same. A ...