Add Yahoo as a preferred source to see more of our stories on Google. A gravitational tug involving Earth's inner core may explain why the planet's day length shifts by milliseconds over decades.

The day is something which appears to be very concrete among all objects in this world. Midnight comes right after 11:59; time moves for 24 hours, and then the process repeats itself. However, the ...

Earth's inner core swings about 2.35 degrees over roughly 70 years, and its gravitational pull changes the length of a day by ...

A battle of forces, driven by the motion of Earth’s core, can explain small variations in the planet’s rotation, study finds.

(NEXSTAR) – Deep in the center of the Earth is the inner core, which spans roughly 746 miles and is composed of primarily pure, solid iron, NASA explains. Though we’ve long believed – and research has ...

Scientists may have solved why the length of Earth’s day changes by a few milliseconds over decades. Subtle shifts in the inner core appear to tug on the mantle, revealing a surprisingly dynamic world ...

Introduction]Beneath our feet, deep within the Earth, lies a massive lump of metal known as the 'inner core'.In recent years, ...

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 ...

A study published in Nature identified the inner core as a key factor behind variations in day length that occur over several ...

Variations in day length that occur on multidecadal timescales are caused by gravitational coupling between Earth’s inner core and its solid mantle.

Scientists reveal Earth's inner core rotation is slowing and reversing, driven by outer core convection and mantle gravity. asim alnamat/Pexels ...

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