The Rotation of Earth's Inner Core Is Slowing Down

 From Science Alert:

Led by a team from the University of Southern California (USC), the researchers behind the finding think this change in the core's rotation could change the length of our days – albeit only by a few fractions of a second, so you won't need to reset your watches just yet.

"When I first saw the seismograms that hinted at this change, I was stumped," says Earth scientist John Vidale from USC. "But when we found two dozen more observations signaling the same pattern, the result was inescapable.The inner core had slowed down for the first time in many decades. Other scientists have recently argued for similar and different models, but our latest study provides the most convincing resolution.." (Read more)