Key alignment: Randomly-oriented crystal samples do not reproduce the shear wave velocity jump at the D" discontinuity, while crystals oriented along the (001) slip plane of the material's lattice do.

Earthquakes, volcanic eruptions, shifting tectonic plates—these are all signs that our planet is alive. But what is revealed deep inside Earth surprises laymen and scientists alike: Almost 3000 ...

Why seismic waves spontaneously race inside the earth Peer-Reviewed Publication ETH Zurich Earthquakes, volcanic eruptions, shifting tectonic plates - these are all signs that our planet is alive.

Cross-section of the Earth: Between the Earth's outer core (brown) and the lower mantle (light brown) lies a mysterious zone where the speed of seismic waves changes abruptly. (Image: Keystone / ...

Earth’s solid inner core appears to have changed shape in the past 20 years or so, according to seismic wave measurements – but the behaviour of these waves could also be explained by other ...

Understanding Earth’s structure is key to unlocking its internal dynamics. Seismic tomography shows faster-than-normal wave speeds in the mantle, which match the locations where tectonic plates have ...

But like we can study the Earth's interior by looking at seismic waves traveling through it, we can look at waves traveling through the Sun and their effect on electromagnetic waves at the Sun's ...

University of Maryland scientists uncovered evidence of an ancient seafloor that sank deep into Earth during the age of dinosaurs, challenging existing theories about Earth's interior structure ...