Add Yahoo as a preferred source to see more of our stories on Google. A 3D rendering of the Earth's layers, including its inner core.Getty Images Earth's inner core may have paused and reversed its ...

(CNN) — Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and timekeepers. July 10 was the shortest day of the year so far, lasting ...

Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second.

At its equator, Earth is spinning at about 1,040 mph. But what if it just suddenly stopped? You and everything else could go flying at hundreds of miles per hour, unless you're at the poles. Earth's ...

Earth's inner core may have paused and reversed its spin, a new study suggests. Earthquakes and nuclear blasts can send seismic waves through the mysterious solid-iron core. Those waves hint that the ...