For most of human history, our ancestors kept time by the sun-the interval between one sunrise and the next marked the passage of what we call a day. But then, in the 1950s, scientists invented atomic ...

The summer is winding down and there might be even less of it this week. As the Earth spins faster this summer, the days are just slightly shorter. But those milliseconds are adding up. Other WRAL Top ...

If you haven’t accomplished as much this summer as you had hoped to, you can blame forces far beyond your control: a few of these dog days, by one measure, are among the shortest you’ve ever lived ...

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 ...

For this amazing video, a star tracker was used to track the night sky while shooting a time-lapse, resulting in a fixed sky ...

Earth will complete a rotation 1.33 milliseconds earlier than usual on Tuesday, August 5. That makes it one of the shortest days of 2025 at 86,399.99867 seconds long. How that happens, and how we can ...