Currently, the Earth's inner core is moving slowly and in the opposite direction relative to the rotation of the Earth's surface. Scientists have noted that since the early 1970s, the inner core ...

The planet’s rotation was completed 1.59 milliseconds short of a 24-hour day on June 29, breaking the record for the world’s shortest day in modern history.

On July 19, 2020, Earth set a new milestone by completing its daily rotation 1.47 milliseconds shorter than 86,400 seconds. This wasn’t a one-off event; the trend has continued since then.

The rotation of the Earth's inner core may be reversing, scientists have found in a study that sheds new light on geological processes occurring deep within our planet.

For a while, the scientists reported, the core’s rotation matched Earth’s spin. Then it slowed even more, until the core was moving backward relative to the fluid layers around it.

Summer 2025 will have three of the shortest days on record as Earth’s rotation unexpectedly accelerates By . Shane Galvin. Published July 2, 2025, 5:26 p.m. ET. Time is not on your side this summer.

As rising global temperatures melt Earth’s polar ice sheets, the shifting water is creating such a huge redistribution of our planet’s mass that its rotation speed is dropping. This unusual ...

Scientists Turned the Earth’s Rotation Into 17 Microvolts of Electricity. That Could Be Revolutionary. In trying to solve Earth’s climate problem, the answer might be Earth itself.

Is the rotation speed of Earth's core slowing down? Danish seismologist Inge Lehmann discovered the planet's inner core in 1936. Since then, scientists have continued to debate its rotation speed ...