Key Takeaways on the Speed of Earth's Rotation The speed of Earth's rotation is about 1,000 miles per hour relative to its axis. Your exact speed of rotation due to Earth's spin depends on your ...

For a while, the scientists reported, the core’s rotation matched Earth’s spin. Then it slowed even more, until the core was moving backward relative to the fluid layers around it.

Zotov predicts Earth’s rotation may soon decelerate once again. If he’s right, this sudden speeding-up could prove to be just ...

Earth Orientation Parameters (EOP): Quantitative measures that describe the rotation of the Earth, including polar motion, LOD variations, and celestial pole offsets.

NPR's Ayesha Rascoe talks to John Vidale, professor of earth sciences at the University of Southern California, about new research suggesting the rotation of Earth's inner core may be slowing down.

Planet Earth is spinning a little faster today — and will spin a little faster one day next month, too. This will technically result in shorter days, but the change will be so minuscule you won’t even ...

A strange shift in Earth's rotation is making our days milliseconds shorter — and scientists are racing to understand why.

Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. If a standard day is shortened or lengthened by a number of milliseconds, that added or ...

To understand the concept of angular momentum, visualize the Earth spinning in space. Given Earth’s overall mass and its rotation, it contains a certain amount of angular momentum.

At the end of the first week of January in 1851, Jean Bernard Leon Foucault realised that he could show the rotation of the Earth using a simple experiment. At a time when there was only ...