The new map highlights six regions that had been poorly sampled by PKP precursor studies and now appear to be promising targets for closer investigation. They include areas beneath high-latitude ...

Earth's rotation experiences slight variations in day length due to interactions within its inner core and mantle.

Earth’s days are not always exactly 24 hours long. Tiny changes in the planet’s rotation can add or shave off a few ...

Add Yahoo as a preferred source to see more of our stories on Google. While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is ...

Far below your feet, nearly 1,800 miles beneath oceans and continents, Earth carries two massive scars from its violent youth. They are so large they rival continents in size, yet no human will ever ...

Newswise — For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so vast and unusual that they defy conventional models of planetary ...

An international research team may have found an explanation for seismic anomalies, the noticeable deviations in the behavior of earthquake waves, in Earth's inner core. A team led by scientists from ...

We use a day as 24 hours. When we look at a clock, it feels as though time from morning to night progresses at a constant ...

Tiny changes in Earth’s rotation may reveal a tug-of-war between its deformable inner core, liquid outer core and deep mantle.

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure iron, meaning lighter elements exist in the core, as well. In particular, it's ...