Find out what’s speeding up Earth’s rotation and why it may force timekeepers to delete a second ...

Earth's rotation is randomly speeding up, and nobody is quite sure why. These speedups, which have occurred several times over the last few years, haven't had any effect on daily life, but they also ...

The new study described this "almost unprecedented rate of increase" in the length of an average day as a quantifiable ...

The days are getting shorter and not just because summer is waning in the Northern Hemisphere. On Tuesday, Aug. 5, Earth's solar day will be ever so slightly shorter than usual 24 hours, according to ...

In the past month, Earth experienced some of its shortest days on record. The planet spun quickly enough to shave 1.4 milliseconds off of its usual 24-hour day. These natural accelerations in Earth’s ...

Melting ice is not just raising sea levels, scientists say it is slowing Earth’s spin and making days longer, but how this ...

Add Yahoo as a preferred source to see more of our stories on Google. You're unlikely to miss the 1.25 milliseconds that will make Aug. 5 one of the shortest days ever. Earth's rotation is randomly ...

Earth's rotation is randomly speeding up, and nobody is quite sure why. These speedups, which have occurred several times over the last few years, haven't had any effect on daily life, but they also ...