TEMPE, Ariz. — Seismologists in recent years have recast their understanding of the inner workings of Earth from a relatively benign homogeneous environment to one that is highly dynamic and ...

For practical purposes, we say that one day—the time it takes for Earth to rotate once on its axis—equates to 24 hours. In ...

Scientists have identified six previously unknown regions deep inside Earth’s lower mantle, revealing hidden variations in the planet’s deepest interior that had never been documented before. The ...

Brightly colored illustration showing Earth cut in half to reveal distinct interior layers. The nature of Earth's interior has long fascinated scientists. Credit: Johan Swanepoel/Science Source ...

Seismic waves passing through the Earth have revealed that the inner core of our planet is now rotating out-of-sync with the layers above it. Update: As reported below, research from January 2023 ...

Plate tectonics has shaped the Earth’s surface for billions of years: Continents and oceanic crust have pushed and pulled on each other, continually rearranging the planet’s façade. As two massive ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Radiation from the sun may not just affect our planet's surface, but ...

Geologists studying some of the planet's oldest volcanic rocks have uncovered new evidence that water was playing a major role in shaping Earth's interior and driving volcanic activity more than 3 ...

First, let's take a look at the big picture of Earth science.In the Earth science taught in junior high school, facts discovered over 2,300 years ago and theories that only became established a few ...

The largest region of Earth's interior is the mantle, a layer of semi-molten rock that extends 2,891 km (1,796 mi) from the underside of the crust to the liquid outer core. The mantle makes up around ...