Scientists report that Earth will briefly spin faster on July 9, 22, and August 5, shortening those summer days by 1.3 to 1.5 milliseconds. Though undetectable in daily life, this shift offers clues to how lunar gravity and seasonal changes affect planetary dynamics. Experts note that while timekeeping systems like GPS are unaffected, this rare speed-up may one day prompt a “negative leap second” to sync atomic clocks. It’s a subtle, fascinating reminder of how our planet’s rhythm change over time.
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