Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

The Earth is predicted to increase its rotation speed in July and August, once again bucking the trend of a slower rotation ...

In March 2011, a magnitude 9.0 earthquake struck off the east coast of Japan, and moved the Earth's axis, shortening our days ...

DETROIT — The days are indeed getting shorter. Earth had its shortest day ever recorded on June 29, with the day ending 1.59 milliseconds sooner than usual, according to the National Physical ...

As The Guardian notes, around 1.4 billion years ago, a rotation of the Earth took less than 19 hours. Days have gotten longer by, on average, around one 74,000th of a second each year.

The Earth’s rotation speed changes over time, too. About 4.4 billion years ago, the moon formed after something huge crashed into Earth. At that time, ...

A rotation is the length of time the Earth takes to spin once on its axis. The previous record was on July 19, 2020, when the day measured 1.47 milliseconds shorter than normal.

View of Earth from space. Image source: studio023 / Adobe. To fully understand how these human-built megastructures affect Earth’s rotation, though, we have to dig into the math a little bit.

Scientists say they’ve confirmed Earth’s inner core has been slowing down. Here’s what it could mean — and why the topic has been the subject of fierce debate.

Scientists say they’ve confirmed Earth’s inner core has been slowing down. Here’s what it could mean — and why the topic has been the subject of fierce debate.