Researchers at Nagoya University in Japan have conducted the most detailed simulation of the interior of stars and disproved a theory scientists believed for 45 years: that stars switch their rotation ...

Earth’s rotation is speeding up. This summer, our planet will spin faster than usual, creating the shortest day since records began. Though we cannot sense these changes, they show the forces that ...

Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time. A study published Wednesday found that the melting of polar ice — an accelerating trend driven ...