Earth's rotation has been increasing in speed, with a record-short day of 1.36 milliseconds less than usual recorded on July 10. The Earth's typical rotation takes 86,400 seconds, or 24 hours, to complete. This acceleration may be linked to the moon's gravitational pull and other factors, such as atmospheric changes and water redistribution from melting glaciers. Scientists predict a possible negative leap second by 2029 to adjust clocks accordingly, impacting satellite systems, GPS accuracy, and time measurement itself.
Earth's rotation has continued to pick up speed, and is expected to spin even faster than it did on July 9, when everyone on the planet experienced a day that was 1.3 milliseconds shorter than normal.
New research from NASA has suggested it may be connected to the moon's gravitational pull, affecting Earth's acceleration and rotation time.
The major uptick in speed this summer has led to the possibility that scientists will have to add a negative leap second to the calendar by 2029, meaning one second will be taken away from our clocks.
Researchers have found that the shorter day can affect everything from satellite systems and GPS accuracy to how we measure time itself.
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