BUTTE, Mont. — Envision this scenario: You are going about your day. All is calm and quiet until suddenly, the ground beneath your feet begins to shake, and items within your home or workspace begin ...

Geophysicists find link between seismic waves called PKP precursors and anomalies in Earth's mantle that are associated with hotspots associated with volcanism on the surface. For the decades since ...

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 ...

Mars’ heart is about the size of our moon, and almost twice as dense. Or so suggest the first observed rumblings from a Marsquake and meteorite impact to cross the Red Planet’s heart, researchers ...

The Vandenberg Space Force Base in Santa Barbara, California, serves military space launch missions as well as launches for NASA and commercial entities like SpaceX. But how do all those launches ...