Earth's rotation is unexpectedly speeding up, potentially causing the shortest day in recorded history. Scientists predict a faster rotation on July 9th, 22nd, or August 5th, shortening the day by less than two milliseconds. While seemingly insignificant, this could disrupt technologies reliant on precise timekeeping, potentially requiring the unprecedented removal of a leap second. The cause of this acceleration remains unknown, with researchers exploring factors like the Earth's core, ocean currents, and atmospheric conditions.

Prepared by Olivia Bennett and reviewed by editorial team.