Science ❯Earth Sciences ❯Geophysics

Earth's Rotation

Timekeeping Timekeeping Systems Historical Changes Impact on Technology Study from NASA's JPL and ETH Zurich Influence of Lunar Tidal Friction Angular Velocity Negative Leap Second Speed Changes Day and Night Cycle Time Measurement Variations in Speed Length of Day Impact of Melting Polar Ice Caps Effects of Earth's Rotation Angular Momentum Conservation Climate Change

Earth Spins Faster Than Ever, Logging One of the Shortest Days on Record

International timekeepers plan a negative leap second by 2029 to align clocks after the planet’s unexpected spin-up.

Earth Sets Second-Shortest Day of 2025 as Spin Continues to Accelerate

Earth's Spin Breaks Short-Day Records as Timekeepers Halt 2025 Leap Second

Three Record-Short Days Ahead as Earth’s Spin Accelerates

Summer Solstice Marks Longest Day in Northern Hemisphere

Climate Change Alters Earth's Spin and Axis

Global Warming May Delay Introduction of First-Ever Negative Leap Second