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You’ve heard of a leap year, but what about a leap second? A physicist explains what is messing with the Earth’s rotation
Melting polar ice is slowing the Earth's rotation, with possible consequences for timekeeping
Global Warming Is Slowing the Earth’s Rotation
Ring Laser Precision: Unprecedented Daily Measurements Charting Earth’s Rotation
The rotation of Saturn’s moon Hyperion is so chaotic that it’s impossible to know what direction it will be facing more than a month in advance.
