Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars. Scientists call this difference crucial to ...

For the first time, researchers at ETH Zurich have been able to fully explain the various causes of long-term polar motion in the most comprehensive modeling to date, using AI methods. Their model and ...

The idea that a day on Earth always lasts 24 hours feels fixed, which is believed to be permanent. The same rhythm people build their lives around. But scientists have long observed that Earth’s ...

One day in the next couple of years, everyone in the world will lose a second of their time. Exactly when that will happen is being influenced by humans, according to a new study, as melting polar ice ...

Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.