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 rotates at about 1,670 kilometers per hour at the equator, yet we experience no sense of motion. But how is this ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer.

The Earth is predicted to make its fastest rotations on July 9, July 10, July 22 and August 5, according to a Time and Date ...

July 9 was predicted to have a shorter "length of day" than usual due to an increase in Earth's rotation speed. See which ...

Each tick of the clock marks a second in a day, normally 86,400 of them. But on July 9, 2025, Earth completed its rotation 1.3 milliseconds faster than usual, making it at least the shortest day this ...

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

When the moon is positioned farther from Earth's equator and closer to the poles, its pull on the planet becomes weaker. With ...

The 24-hour day isn’t a given anymore. In recent years, scientists have discovered Earth is rotating slightly faster, which ...

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon.

In fact, July 9 could end up being the shortest day ever recorded by the International Earth Rotation and Reference Systems ...

July 9 is expected to be one of the shortest days in history, but you won’t notice a difference. The Earth has been moving ...