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

Climate Change Is Slowing Earth’s Spin, Lengthening Days at a Rate Unseen in 3.6 Million Years

Scientists link the slowdown to ice‑melt–driven sea‑level rise moving mass away from Earth’s spin axis.

Ancient Chinese Eclipse Reinterpreted After Qufu's True Location Identified, Refining Earth Rotation and Solar Activity Records

Corrected Qufu Coordinates Confirm 709 BCE Total Eclipse, Tighten ΔT Estimates

The Moon Is Drifting Farther From Earth by 3.8 Centimeters a Year

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

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