Scientists break down the reasons why days are getting shorter—and the mystery they're still trying to solve about Earth's ...

The moon causes a second phenomenon that affects Earth’s rotation on a human timescale. Beachgoers know full well that the moon’s gravity causes the seas’ daily high and low tides, and the solid Earth ...

This summer a few factors are adding up to make a handful of Earth’s spins—those occurring on July 10, July 22 and August 5—more than a millisecond faster than the average of the past several decades.

July 22 will not be a normal 24-hour day. Instead, Earth's rotation will be completed just shy of those 24 hours. Find out ...

An ice core that may be older than 1.5 million years has arrived in the UK where scientists will melt it to unlock vital ...

Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and ...

For years, NASA has monitored a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the ...

Earth's rotation is speeding up, with July 22 being one of the shortest days ever recorded, 1.34 milliseconds less than 24 ...

Despite decades of effort, humans have only drilled 0.2% into Earth’s crust. Heat, pressure, and flowing rock make reaching ...

But there has been one big mystery: Earth’s inner core, a solid ball of iron, only began to form about a billion years ago.